Home / 819,787.17-1,229,323.62-435,451.91

Finding the Fourth Proportional to 819,787.17, 1,229,323.62 and 435,451.91

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Solution

The fourth proportional to 819,787.17, 1,229,323.62 and 435,451.91 is: 652,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,787.17 : 1,229,323.62 = 435,451.91 : x
  2. Step 2: Convert to fraction form
    819,787.17/1,229,323.62 = 435,451.91/x
  3. Step 3: Cross multiply
    819,787.17x = 1,229,323.62 × 435,451.91
  4. Step 4: Simplify right side
    819,787.17x = 535,311,316,159.86
  5. Step 5: Solve for x
    x = 535,311,316,159.86/819,787.17
  6. Step 6: Final answer
    x = 652,988.16

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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.