Home / 919,197.15-1,377,197.85-645,061.98

Finding the Fourth Proportional to 919,197.15, 1,377,197.85 and 645,061.98

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Solution

The fourth proportional to 919,197.15, 1,377,197.85 and 645,061.98 is: 966,471.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,197.15 : 1,377,197.85 = 645,061.98 : x
  2. Step 2: Convert to fraction form
    919,197.15/1,377,197.85 = 645,061.98/x
  3. Step 3: Cross multiply
    919,197.15x = 1,377,197.85 × 645,061.98
  4. Step 4: Simplify right side
    919,197.15x = 888,377,971,972.74
  5. Step 5: Solve for x
    x = 888,377,971,972.74/919,197.15
  6. Step 6: Final answer
    x = 966,471.63

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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.