Home / 458,829.20-688,243.80-429,304.70

Finding the Fourth Proportional to 458,829.20, 688,243.80 and 429,304.70

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Solution

The fourth proportional to 458,829.20, 688,243.80 and 429,304.70 is: 643,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,829.20 : 688,243.80 = 429,304.70 : x
  2. Step 2: Convert to fraction form
    458,829.20/688,243.80 = 429,304.70/x
  3. Step 3: Cross multiply
    458,829.20x = 688,243.80 × 429,304.70
  4. Step 4: Simplify right side
    458,829.20x = 295,466,298,085.86
  5. Step 5: Solve for x
    x = 295,466,298,085.86/458,829.20
  6. Step 6: Final answer
    x = 643,957.05

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1.5x scale

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.