Home / 982,721.19-1,356,154.65-553,001.72

Finding the Fourth Proportional to 982,721.19, 1,356,154.65 and 553,001.72

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Solution

The fourth proportional to 982,721.19, 1,356,154.65 and 553,001.72 is: 763,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,721.19 : 1,356,154.65 = 553,001.72 : x
  2. Step 2: Convert to fraction form
    982,721.19/1,356,154.65 = 553,001.72/x
  3. Step 3: Cross multiply
    982,721.19x = 1,356,154.65 × 553,001.72
  4. Step 4: Simplify right side
    982,721.19x = 749,955,847,255.23
  5. Step 5: Solve for x
    x = 749,955,847,255.23/982,721.19
  6. Step 6: Final answer
    x = 763,142.03

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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.