Home / 1,117,320.75-1,676,311.61-644,345.55

Finding the Fourth Proportional to 1,117,320.75, 1,676,311.61 and 644,345.55

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Solution

The fourth proportional to 1,117,320.75, 1,676,311.61 and 644,345.55 is: 966,708.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,320.75 : 1,676,311.61 = 644,345.55 : x
  2. Step 2: Convert to fraction form
    1,117,320.75/1,676,311.61 = 644,345.55/x
  3. Step 3: Cross multiply
    1,117,320.75x = 1,676,311.61 × 644,345.55
  4. Step 4: Simplify right side
    1,117,320.75x = 1,080,123,923,095.11
  5. Step 5: Solve for x
    x = 1,080,123,923,095.11/1,117,320.75
  6. Step 6: Final answer
    x = 966,708.91

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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.