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Finding the Fourth Proportional to 653,432.80, 980,732.40 and 564,786.40

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Solution

The fourth proportional to 653,432.80, 980,732.40 and 564,786.40 is: 847,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,432.80 : 980,732.40 = 564,786.40 : x
  2. Step 2: Convert to fraction form
    653,432.80/980,732.40 = 564,786.40/x
  3. Step 3: Cross multiply
    653,432.80x = 980,732.40 × 564,786.40
  4. Step 4: Simplify right side
    653,432.80x = 553,904,321,559.36
  5. Step 5: Solve for x
    x = 553,904,321,559.36/653,432.80
  6. Step 6: Final answer
    x = 847,683.68

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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.