Home / 769,787.80-1,062,264.31-425,603.81

Finding the Fourth Proportional to 769,787.80, 1,062,264.31 and 425,603.81

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Solution

The fourth proportional to 769,787.80, 1,062,264.31 and 425,603.81 is: 587,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,787.80 : 1,062,264.31 = 425,603.81 : x
  2. Step 2: Convert to fraction form
    769,787.80/1,062,264.31 = 425,603.81/x
  3. Step 3: Cross multiply
    769,787.80x = 1,062,264.31 × 425,603.81
  4. Step 4: Simplify right side
    769,787.80x = 452,103,739,154.67
  5. Step 5: Solve for x
    x = 452,103,739,154.67/769,787.80
  6. Step 6: Final answer
    x = 587,309.57

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1.5x scale

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.