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Finding the Fourth Proportional to 624,830.40, 862,270.04 and 338,350.50

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Solution

The fourth proportional to 624,830.40, 862,270.04 and 338,350.50 is: 466,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,830.40 : 862,270.04 = 338,350.50 : x
  2. Step 2: Convert to fraction form
    624,830.40/862,270.04 = 338,350.50/x
  3. Step 3: Cross multiply
    624,830.40x = 862,270.04 × 338,350.50
  4. Step 4: Simplify right side
    624,830.40x = 291,749,499,169.02
  5. Step 5: Solve for x
    x = 291,749,499,169.02/624,830.40
  6. Step 6: Final answer
    x = 466,925.90

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1.5x scale

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.