Home / 731,609.85-1,009,660.80-409,300.71

Finding the Fourth Proportional to 731,609.85, 1,009,660.80 and 409,300.71

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Solution

The fourth proportional to 731,609.85, 1,009,660.80 and 409,300.71 is: 564,856.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,609.85 : 1,009,660.80 = 409,300.71 : x
  2. Step 2: Convert to fraction form
    731,609.85/1,009,660.80 = 409,300.71/x
  3. Step 3: Cross multiply
    731,609.85x = 1,009,660.80 × 409,300.71
  4. Step 4: Simplify right side
    731,609.85x = 413,254,882,299.17
  5. Step 5: Solve for x
    x = 413,254,882,299.17/731,609.85
  6. Step 6: Final answer
    x = 564,856.91

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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.