Home / 646,747.20-904,265.10-646,747.20

Finding the Fourth Proportional to 646,747.20, 904,265.10 and 646,747.20

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Solution

The fourth proportional to 646,747.20, 904,265.10 and 646,747.20 is: 904,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,747.20 : 904,265.10 = 646,747.20 : x
  2. Step 2: Convert to fraction form
    646,747.20/904,265.10 = 646,747.20/x
  3. Step 3: Cross multiply
    646,747.20x = 904,265.10 × 646,747.20
  4. Step 4: Simplify right side
    646,747.20x = 584,830,921,482.72
  5. Step 5: Solve for x
    x = 584,830,921,482.72/646,747.20
  6. Step 6: Final answer
    x = 904,265.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.