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Finding the Fourth Proportional to 518,432.48, 710,770.84 and 508,984.64

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Solution

The fourth proportional to 518,432.48, 710,770.84 and 508,984.64 is: 697,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,432.48 : 710,770.84 = 508,984.64 : x
  2. Step 2: Convert to fraction form
    518,432.48/710,770.84 = 508,984.64/x
  3. Step 3: Cross multiply
    518,432.48x = 710,770.84 × 508,984.64
  4. Step 4: Simplify right side
    518,432.48x = 361,771,440,119.90
  5. Step 5: Solve for x
    x = 361,771,440,119.90/518,432.48
  6. Step 6: Final answer
    x = 697,817.85

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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.