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Finding the Fourth Proportional to 656,670.30, 906,204.96 and 370,190.40

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Solution

The fourth proportional to 656,670.30, 906,204.96 and 370,190.40 is: 510,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,670.30 : 906,204.96 = 370,190.40 : x
  2. Step 2: Convert to fraction form
    656,670.30/906,204.96 = 370,190.40/x
  3. Step 3: Cross multiply
    656,670.30x = 906,204.96 × 370,190.40
  4. Step 4: Simplify right side
    656,670.30x = 335,468,376,624.38
  5. Step 5: Solve for x
    x = 335,468,376,624.38/656,670.30
  6. Step 6: Final answer
    x = 510,862.72

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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.