Home / 891,495.60-1,229,964.72-509,251.76

Finding the Fourth Proportional to 891,495.60, 1,229,964.72 and 509,251.76

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Solution

The fourth proportional to 891,495.60, 1,229,964.72 and 509,251.76 is: 702,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,495.60 : 1,229,964.72 = 509,251.76 : x
  2. Step 2: Convert to fraction form
    891,495.60/1,229,964.72 = 509,251.76/x
  3. Step 3: Cross multiply
    891,495.60x = 1,229,964.72 × 509,251.76
  4. Step 4: Simplify right side
    891,495.60x = 626,361,698,397.91
  5. Step 5: Solve for x
    x = 626,361,698,397.91/891,495.60
  6. Step 6: Final answer
    x = 702,596.51

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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.