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Finding the Fourth Proportional to 664,610.76, 917,165.70 and 362,811.24

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Solution

The fourth proportional to 664,610.76, 917,165.70 and 362,811.24 is: 500,681.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,610.76 : 917,165.70 = 362,811.24 : x
  2. Step 2: Convert to fraction form
    664,610.76/917,165.70 = 362,811.24/x
  3. Step 3: Cross multiply
    664,610.76x = 917,165.70 × 362,811.24
  4. Step 4: Simplify right side
    664,610.76x = 332,758,024,902.47
  5. Step 5: Solve for x
    x = 332,758,024,902.47/664,610.76
  6. Step 6: Final answer
    x = 500,681.07

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Double scale
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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.