Home / 919,931.90-1,377,273.45-814,955.90

Finding the Fourth Proportional to 919,931.90, 1,377,273.45 and 814,955.90

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Solution

The fourth proportional to 919,931.90, 1,377,273.45 and 814,955.90 is: 1,220,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,931.90 : 1,377,273.45 = 814,955.90 : x
  2. Step 2: Convert to fraction form
    919,931.90/1,377,273.45 = 814,955.90/x
  3. Step 3: Cross multiply
    919,931.90x = 1,377,273.45 × 814,955.90
  4. Step 4: Simplify right side
    919,931.90x = 1,122,417,123,990.86
  5. Step 5: Solve for x
    x = 1,122,417,123,990.86/919,931.90
  6. Step 6: Final answer
    x = 1,220,108.93

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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.