Home / 918,711.92-1,378,347.64-469,748.16

Finding the Fourth Proportional to 918,711.92, 1,378,347.64 and 469,748.16

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Solution

The fourth proportional to 918,711.92, 1,378,347.64 and 469,748.16 is: 704,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,711.92 : 1,378,347.64 = 469,748.16 : x
  2. Step 2: Convert to fraction form
    918,711.92/1,378,347.64 = 469,748.16/x
  3. Step 3: Cross multiply
    918,711.92x = 1,378,347.64 × 469,748.16
  4. Step 4: Simplify right side
    918,711.92x = 647,476,266,555.97
  5. Step 5: Solve for x
    x = 647,476,266,555.97/918,711.92
  6. Step 6: Final answer
    x = 704,765.28

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1.5x scale

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.