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Finding the Fourth Proportional to 518,220.52, 710,482.97 and 508,774.12

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Solution

The fourth proportional to 518,220.52, 710,482.97 and 508,774.12 is: 697,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,220.52 : 710,482.97 = 508,774.12 : x
  2. Step 2: Convert to fraction form
    518,220.52/710,482.97 = 508,774.12/x
  3. Step 3: Cross multiply
    518,220.52x = 710,482.97 × 508,774.12
  4. Step 4: Simplify right side
    518,220.52x = 361,475,347,836.74
  5. Step 5: Solve for x
    x = 361,475,347,836.74/518,220.52
  6. Step 6: Final answer
    x = 697,531.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.