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Finding the Fourth Proportional to 495,856.40, 744,562.20 and 285,904.40

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Solution

The fourth proportional to 495,856.40, 744,562.20 and 285,904.40 is: 429,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,856.40 : 744,562.20 = 285,904.40 : x
  2. Step 2: Convert to fraction form
    495,856.40/744,562.20 = 285,904.40/x
  3. Step 3: Cross multiply
    495,856.40x = 744,562.20 × 285,904.40
  4. Step 4: Simplify right side
    495,856.40x = 212,873,609,053.68
  5. Step 5: Solve for x
    x = 212,873,609,053.68/495,856.40
  6. Step 6: Final answer
    x = 429,304.95

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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.