Home / 783,123.30-1,174,684.95-772,625.70

Finding the Fourth Proportional to 783,123.30, 1,174,684.95 and 772,625.70

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Solution

The fourth proportional to 783,123.30, 1,174,684.95 and 772,625.70 is: 1,158,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,123.30 : 1,174,684.95 = 772,625.70 : x
  2. Step 2: Convert to fraction form
    783,123.30/1,174,684.95 = 772,625.70/x
  3. Step 3: Cross multiply
    783,123.30x = 1,174,684.95 × 772,625.70
  4. Step 4: Simplify right side
    783,123.30x = 907,591,781,773.22
  5. Step 5: Solve for x
    x = 907,591,781,773.22/783,123.30
  6. Step 6: Final answer
    x = 1,158,938.55

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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.