Home / 867,002.40-1,299,985.20-447,098.40

Finding the Fourth Proportional to 867,002.40, 1,299,985.20 and 447,098.40

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Solution

The fourth proportional to 867,002.40, 1,299,985.20 and 447,098.40 is: 670,380.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,002.40 : 1,299,985.20 = 447,098.40 : x
  2. Step 2: Convert to fraction form
    867,002.40/1,299,985.20 = 447,098.40/x
  3. Step 3: Cross multiply
    867,002.40x = 1,299,985.20 × 447,098.40
  4. Step 4: Simplify right side
    867,002.40x = 581,221,302,943.68
  5. Step 5: Solve for x
    x = 581,221,302,943.68/867,002.40
  6. Step 6: Final answer
    x = 670,380.27

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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.