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Finding the Fourth Proportional to 655,124.36, 903,750.90 and 400,034.12

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Solution

The fourth proportional to 655,124.36, 903,750.90 and 400,034.12 is: 551,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,124.36 : 903,750.90 = 400,034.12 : x
  2. Step 2: Convert to fraction form
    655,124.36/903,750.90 = 400,034.12/x
  3. Step 3: Cross multiply
    655,124.36x = 903,750.90 × 400,034.12
  4. Step 4: Simplify right side
    655,124.36x = 361,531,195,980.71
  5. Step 5: Solve for x
    x = 361,531,195,980.71/655,124.36
  6. Step 6: Final answer
    x = 551,851.25

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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.