Home / 817,798.30-1,226,948.49-418,719.24

Finding the Fourth Proportional to 817,798.30, 1,226,948.49 and 418,719.24

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Solution

The fourth proportional to 817,798.30, 1,226,948.49 and 418,719.24 is: 628,207.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,798.30 : 1,226,948.49 = 418,719.24 : x
  2. Step 2: Convert to fraction form
    817,798.30/1,226,948.49 = 418,719.24/x
  3. Step 3: Cross multiply
    817,798.30x = 1,226,948.49 × 418,719.24
  4. Step 4: Simplify right side
    817,798.30x = 513,746,939,251.95
  5. Step 5: Solve for x
    x = 513,746,939,251.95/817,798.30
  6. Step 6: Final answer
    x = 628,207.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.