Home / 971,721.77-1,456,212.53-458,839.69

Finding the Fourth Proportional to 971,721.77, 1,456,212.53 and 458,839.69

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Solution

The fourth proportional to 971,721.77, 1,456,212.53 and 458,839.69 is: 687,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,721.77 : 1,456,212.53 = 458,839.69 : x
  2. Step 2: Convert to fraction form
    971,721.77/1,456,212.53 = 458,839.69/x
  3. Step 3: Cross multiply
    971,721.77x = 1,456,212.53 × 458,839.69
  4. Step 4: Simplify right side
    971,721.77x = 668,168,098,558.25
  5. Step 5: Solve for x
    x = 668,168,098,558.25/971,721.77
  6. Step 6: Final answer
    x = 687,612.56

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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.