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Finding the Fourth Proportional to 617,478.40, 924,905.40 and 512,502.40

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Solution

The fourth proportional to 617,478.40, 924,905.40 and 512,502.40 is: 767,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,478.40 : 924,905.40 = 512,502.40 : x
  2. Step 2: Convert to fraction form
    617,478.40/924,905.40 = 512,502.40/x
  3. Step 3: Cross multiply
    617,478.40x = 924,905.40 × 512,502.40
  4. Step 4: Simplify right side
    617,478.40x = 474,016,237,272.96
  5. Step 5: Solve for x
    x = 474,016,237,272.96/617,478.40
  6. Step 6: Final answer
    x = 767,664.48

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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.