Home / 731,609.84-1,009,660.80-409,300.72

Finding the Fourth Proportional to 731,609.84, 1,009,660.80 and 409,300.72

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Solution

The fourth proportional to 731,609.84, 1,009,660.80 and 409,300.72 is: 564,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,609.84 : 1,009,660.80 = 409,300.72 : x
  2. Step 2: Convert to fraction form
    731,609.84/1,009,660.80 = 409,300.72/x
  3. Step 3: Cross multiply
    731,609.84x = 1,009,660.80 × 409,300.72
  4. Step 4: Simplify right side
    731,609.84x = 413,254,892,395.78
  5. Step 5: Solve for x
    x = 413,254,892,395.78/731,609.84
  6. Step 6: Final answer
    x = 564,856.94

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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.