Home / 904,519.80-1,356,779.70-432,127.80

Finding the Fourth Proportional to 904,519.80, 1,356,779.70 and 432,127.80

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Solution

The fourth proportional to 904,519.80, 1,356,779.70 and 432,127.80 is: 648,191.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,519.80 : 1,356,779.70 = 432,127.80 : x
  2. Step 2: Convert to fraction form
    904,519.80/1,356,779.70 = 432,127.80/x
  3. Step 3: Cross multiply
    904,519.80x = 1,356,779.70 × 432,127.80
  4. Step 4: Simplify right side
    904,519.80x = 586,302,226,845.66
  5. Step 5: Solve for x
    x = 586,302,226,845.66/904,519.80
  6. Step 6: Final answer
    x = 648,191.70

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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.