Home / 865,846.40-1,194,764.51-478,609.49

Finding the Fourth Proportional to 865,846.40, 1,194,764.51 and 478,609.49

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Solution

The fourth proportional to 865,846.40, 1,194,764.51 and 478,609.49 is: 660,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,846.40 : 1,194,764.51 = 478,609.49 : x
  2. Step 2: Convert to fraction form
    865,846.40/1,194,764.51 = 478,609.49/x
  3. Step 3: Cross multiply
    865,846.40x = 1,194,764.51 × 478,609.49
  4. Step 4: Simplify right side
    865,846.40x = 571,825,636,984.64
  5. Step 5: Solve for x
    x = 571,825,636,984.64/865,846.40
  6. Step 6: Final answer
    x = 660,423.88

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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.