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Finding the Fourth Proportional to 669,920.60, 924,479.94 and 368,108.12

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Solution

The fourth proportional to 669,920.60, 924,479.94 and 368,108.12 is: 507,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,920.60 : 924,479.94 = 368,108.12 : x
  2. Step 2: Convert to fraction form
    669,920.60/924,479.94 = 368,108.12/x
  3. Step 3: Cross multiply
    669,920.60x = 924,479.94 × 368,108.12
  4. Step 4: Simplify right side
    669,920.60x = 340,308,572,691.11
  5. Step 5: Solve for x
    x = 340,308,572,691.11/669,920.60
  6. Step 6: Final answer
    x = 507,983.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.