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Finding the Fourth Proportional to 906,547, 1,251,062.40 and 498,627.76

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Solution

The fourth proportional to 906,547, 1,251,062.40 and 498,627.76 is: 688,121.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,547 : 1,251,062.40 = 498,627.76 : x
  2. Step 2: Convert to fraction form
    906,547/1,251,062.40 = 498,627.76/x
  3. Step 3: Cross multiply
    906,547x = 1,251,062.40 × 498,627.76
  4. Step 4: Simplify right side
    906,547x = 623,814,442,132.22
  5. Step 5: Solve for x
    x = 623,814,442,132.22/906,547
  6. Step 6: Final answer
    x = 688,121.46

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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.