Home / 990,134.28-1,366,384.68-537,425.28

Finding the Fourth Proportional to 990,134.28, 1,366,384.68 and 537,425.28

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Solution

The fourth proportional to 990,134.28, 1,366,384.68 and 537,425.28 is: 741,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,134.28 : 1,366,384.68 = 537,425.28 : x
  2. Step 2: Convert to fraction form
    990,134.28/1,366,384.68 = 537,425.28/x
  3. Step 3: Cross multiply
    990,134.28x = 1,366,384.68 × 537,425.28
  4. Step 4: Simplify right side
    990,134.28x = 734,329,669,236.71
  5. Step 5: Solve for x
    x = 734,329,669,236.71/990,134.28
  6. Step 6: Final answer
    x = 741,646.55

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1.5x scale

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.