Home / 891,082.23-1,229,758.65-509,100.81

Finding the Fourth Proportional to 891,082.23, 1,229,758.65 and 509,100.81

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Solution

The fourth proportional to 891,082.23, 1,229,758.65 and 509,100.81 is: 702,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,082.23 : 1,229,758.65 = 509,100.81 : x
  2. Step 2: Convert to fraction form
    891,082.23/1,229,758.65 = 509,100.81/x
  3. Step 3: Cross multiply
    891,082.23x = 1,229,758.65 × 509,100.81
  4. Step 4: Simplify right side
    891,082.23x = 626,071,124,819.51
  5. Step 5: Solve for x
    x = 626,071,124,819.51/891,082.23
  6. Step 6: Final answer
    x = 702,596.35

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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.