Home / 725,312.64-1,000,885.50-403,003.92

Finding the Fourth Proportional to 725,312.64, 1,000,885.50 and 403,003.92

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Solution

The fourth proportional to 725,312.64, 1,000,885.50 and 403,003.92 is: 556,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,312.64 : 1,000,885.50 = 403,003.92 : x
  2. Step 2: Convert to fraction form
    725,312.64/1,000,885.50 = 403,003.92/x
  3. Step 3: Cross multiply
    725,312.64x = 1,000,885.50 × 403,003.92
  4. Step 4: Simplify right side
    725,312.64x = 403,360,779,971.16
  5. Step 5: Solve for x
    x = 403,360,779,971.16/725,312.64
  6. Step 6: Final answer
    x = 556,119.88

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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.