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Finding the Fourth Proportional to 659,230.80, 989,429.40 and 564,752.40

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Solution

The fourth proportional to 659,230.80, 989,429.40 and 564,752.40 is: 847,628.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,230.80 : 989,429.40 = 564,752.40 : x
  2. Step 2: Convert to fraction form
    659,230.80/989,429.40 = 564,752.40/x
  3. Step 3: Cross multiply
    659,230.80x = 989,429.40 × 564,752.40
  4. Step 4: Simplify right side
    659,230.80x = 558,782,628,280.56
  5. Step 5: Solve for x
    x = 558,782,628,280.56/659,230.80
  6. Step 6: Final answer
    x = 847,628.22

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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.