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Finding the Fourth Proportional to 652,398.17, 900,311.10 and 380,652.89

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Solution

The fourth proportional to 652,398.17, 900,311.10 and 380,652.89 is: 525,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,398.17 : 900,311.10 = 380,652.89 : x
  2. Step 2: Convert to fraction form
    652,398.17/900,311.10 = 380,652.89/x
  3. Step 3: Cross multiply
    652,398.17x = 900,311.10 × 380,652.89
  4. Step 4: Simplify right side
    652,398.17x = 342,706,022,114.08
  5. Step 5: Solve for x
    x = 342,706,022,114.08/652,398.17
  6. Step 6: Final answer
    x = 525,301.94

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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.