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Finding the Fourth Proportional to 659,964.64, 910,764.84 and 373,484.65

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Solution

The fourth proportional to 659,964.64, 910,764.84 and 373,484.65 is: 515,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,964.64 : 910,764.84 = 373,484.65 : x
  2. Step 2: Convert to fraction form
    659,964.64/910,764.84 = 373,484.65/x
  3. Step 3: Cross multiply
    659,964.64x = 910,764.84 × 373,484.65
  4. Step 4: Simplify right side
    659,964.64x = 340,156,687,499.71
  5. Step 5: Solve for x
    x = 340,156,687,499.71/659,964.64
  6. Step 6: Final answer
    x = 515,416.53

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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.