Home / 1,257,972.88-1,885,384.14-990,677.74

Finding the Fourth Proportional to 1,257,972.88, 1,885,384.14 and 990,677.74

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Solution

The fourth proportional to 1,257,972.88, 1,885,384.14 and 990,677.74 is: 1,484,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,972.88 : 1,885,384.14 = 990,677.74 : x
  2. Step 2: Convert to fraction form
    1,257,972.88/1,885,384.14 = 990,677.74/x
  3. Step 3: Cross multiply
    1,257,972.88x = 1,885,384.14 × 990,677.74
  4. Step 4: Simplify right side
    1,257,972.88x = 1,867,808,098,847.04
  5. Step 5: Solve for x
    x = 1,867,808,098,847.04/1,257,972.88
  6. Step 6: Final answer
    x = 1,484,776.13

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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.