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Finding the Fourth Proportional to 597,688.80, 895,496.40 and 387,218.40

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Solution

The fourth proportional to 597,688.80, 895,496.40 and 387,218.40 is: 580,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,688.80 : 895,496.40 = 387,218.40 : x
  2. Step 2: Convert to fraction form
    597,688.80/895,496.40 = 387,218.40/x
  3. Step 3: Cross multiply
    597,688.80x = 895,496.40 × 387,218.40
  4. Step 4: Simplify right side
    597,688.80x = 346,752,683,213.76
  5. Step 5: Solve for x
    x = 346,752,683,213.76/597,688.80
  6. Step 6: Final answer
    x = 580,155.90

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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.