Home / 840,721.60-1,160,223.78-458,769.34

Finding the Fourth Proportional to 840,721.60, 1,160,223.78 and 458,769.34

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Solution

The fourth proportional to 840,721.60, 1,160,223.78 and 458,769.34 is: 633,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,721.60 : 1,160,223.78 = 458,769.34 : x
  2. Step 2: Convert to fraction form
    840,721.60/1,160,223.78 = 458,769.34/x
  3. Step 3: Cross multiply
    840,721.60x = 1,160,223.78 × 458,769.34
  4. Step 4: Simplify right side
    840,721.60x = 532,275,097,802.91
  5. Step 5: Solve for x
    x = 532,275,097,802.91/840,721.60
  6. Step 6: Final answer
    x = 633,116.95

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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.