Home / 1,031,620.84-1,423,641.91-644,660.95

Finding the Fourth Proportional to 1,031,620.84, 1,423,641.91 and 644,660.95

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Solution

The fourth proportional to 1,031,620.84, 1,423,641.91 and 644,660.95 is: 889,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,620.84 : 1,423,641.91 = 644,660.95 : x
  2. Step 2: Convert to fraction form
    1,031,620.84/1,423,641.91 = 644,660.95/x
  3. Step 3: Cross multiply
    1,031,620.84x = 1,423,641.91 × 644,660.95
  4. Step 4: Simplify right side
    1,031,620.84x = 917,766,342,937.11
  5. Step 5: Solve for x
    x = 917,766,342,937.11/1,031,620.84
  6. Step 6: Final answer
    x = 889,635.33

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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.