Home / 904,845.12-1,248,636.78-497,000.40

Finding the Fourth Proportional to 904,845.12, 1,248,636.78 and 497,000.40

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Solution

The fourth proportional to 904,845.12, 1,248,636.78 and 497,000.40 is: 685,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,845.12 : 1,248,636.78 = 497,000.40 : x
  2. Step 2: Convert to fraction form
    904,845.12/1,248,636.78 = 497,000.40/x
  3. Step 3: Cross multiply
    904,845.12x = 1,248,636.78 × 497,000.40
  4. Step 4: Simplify right side
    904,845.12x = 620,572,979,114.71
  5. Step 5: Solve for x
    x = 620,572,979,114.71/904,845.12
  6. Step 6: Final answer
    x = 685,833.37

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.