Home / 840,721.40-1,160,223.54-458,769.14

Finding the Fourth Proportional to 840,721.40, 1,160,223.54 and 458,769.14

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Solution

The fourth proportional to 840,721.40, 1,160,223.54 and 458,769.14 is: 633,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,721.40 : 1,160,223.54 = 458,769.14 : x
  2. Step 2: Convert to fraction form
    840,721.40/1,160,223.54 = 458,769.14/x
  3. Step 3: Cross multiply
    840,721.40x = 1,160,223.54 × 458,769.14
  4. Step 4: Simplify right side
    840,721.40x = 532,274,755,653.56
  5. Step 5: Solve for x
    x = 532,274,755,653.56/840,721.40
  6. Step 6: Final answer
    x = 633,116.70

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1.5x scale

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.