Home / 904,005.40-1,356,008.10-230,085.40

Finding the Fourth Proportional to 904,005.40, 1,356,008.10 and 230,085.40

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Solution

The fourth proportional to 904,005.40, 1,356,008.10 and 230,085.40 is: 345,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,005.40 : 1,356,008.10 = 230,085.40 : x
  2. Step 2: Convert to fraction form
    904,005.40/1,356,008.10 = 230,085.40/x
  3. Step 3: Cross multiply
    904,005.40x = 1,356,008.10 × 230,085.40
  4. Step 4: Simplify right side
    904,005.40x = 311,997,666,091.74
  5. Step 5: Solve for x
    x = 311,997,666,091.74/904,005.40
  6. Step 6: Final answer
    x = 345,128.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.