Home / 648,200.20-972,591.90-293,031.40

Finding the Fourth Proportional to 648,200.20, 972,591.90 and 293,031.40

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Solution

The fourth proportional to 648,200.20, 972,591.90 and 293,031.40 is: 439,678.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,200.20 : 972,591.90 = 293,031.40 : x
  2. Step 2: Convert to fraction form
    648,200.20/972,591.90 = 293,031.40/x
  3. Step 3: Cross multiply
    648,200.20x = 972,591.90 × 293,031.40
  4. Step 4: Simplify right side
    648,200.20x = 284,999,966,085.66
  5. Step 5: Solve for x
    x = 284,999,966,085.66/648,200.20
  6. Step 6: Final answer
    x = 439,678.92

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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.