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Finding the Fourth Proportional to 607,750.80, 912,209.40 and 308,569.20

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Solution

The fourth proportional to 607,750.80, 912,209.40 and 308,569.20 is: 463,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,750.80 : 912,209.40 = 308,569.20 : x
  2. Step 2: Convert to fraction form
    607,750.80/912,209.40 = 308,569.20/x
  3. Step 3: Cross multiply
    607,750.80x = 912,209.40 × 308,569.20
  4. Step 4: Simplify right side
    607,750.80x = 281,479,724,790.48
  5. Step 5: Solve for x
    x = 281,479,724,790.48/607,750.80
  6. Step 6: Final answer
    x = 463,149.90

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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.