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Finding the Fourth Proportional to 617,476.40, 924,902.40 and 512,500.40

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Solution

The fourth proportional to 617,476.40, 924,902.40 and 512,500.40 is: 767,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,476.40 : 924,902.40 = 512,500.40 : x
  2. Step 2: Convert to fraction form
    617,476.40/924,902.40 = 512,500.40/x
  3. Step 3: Cross multiply
    617,476.40x = 924,902.40 × 512,500.40
  4. Step 4: Simplify right side
    617,476.40x = 474,012,849,960.96
  5. Step 5: Solve for x
    x = 474,012,849,960.96/617,476.40
  6. Step 6: Final answer
    x = 767,661.48

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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.