Home / 876,005.80-1,314,008.70-378,341.80

Finding the Fourth Proportional to 876,005.80, 1,314,008.70 and 378,341.80

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Solution

The fourth proportional to 876,005.80, 1,314,008.70 and 378,341.80 is: 567,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,005.80 : 1,314,008.70 = 378,341.80 : x
  2. Step 2: Convert to fraction form
    876,005.80/1,314,008.70 = 378,341.80/x
  3. Step 3: Cross multiply
    876,005.80x = 1,314,008.70 × 378,341.80
  4. Step 4: Simplify right side
    876,005.80x = 497,144,416,773.66
  5. Step 5: Solve for x
    x = 497,144,416,773.66/876,005.80
  6. Step 6: Final answer
    x = 567,512.70

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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.