Home / 817,513.68-1,226,520.24-418,437.24

Finding the Fourth Proportional to 817,513.68, 1,226,520.24 and 418,437.24

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Solution

The fourth proportional to 817,513.68, 1,226,520.24 and 418,437.24 is: 627,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,513.68 : 1,226,520.24 = 418,437.24 : x
  2. Step 2: Convert to fraction form
    817,513.68/1,226,520.24 = 418,437.24/x
  3. Step 3: Cross multiply
    817,513.68x = 1,226,520.24 × 418,437.24
  4. Step 4: Simplify right side
    817,513.68x = 513,221,744,029.74
  5. Step 5: Solve for x
    x = 513,221,744,029.74/817,513.68
  6. Step 6: Final answer
    x = 627,783.68

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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.