Home / 725,516.40-1,087,885.80-304,316.40

Finding the Fourth Proportional to 725,516.40, 1,087,885.80 and 304,316.40

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Solution

The fourth proportional to 725,516.40, 1,087,885.80 and 304,316.40 is: 456,311.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,516.40 : 1,087,885.80 = 304,316.40 : x
  2. Step 2: Convert to fraction form
    725,516.40/1,087,885.80 = 304,316.40/x
  3. Step 3: Cross multiply
    725,516.40x = 1,087,885.80 × 304,316.40
  4. Step 4: Simplify right side
    725,516.40x = 331,061,490,267.12
  5. Step 5: Solve for x
    x = 331,061,490,267.12/725,516.40
  6. Step 6: Final answer
    x = 456,311.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.