Home / 769,435.87-1,061,876.47-425,264.40

Finding the Fourth Proportional to 769,435.87, 1,061,876.47 and 425,264.40

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Solution

The fourth proportional to 769,435.87, 1,061,876.47 and 425,264.40 is: 586,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,435.87 : 1,061,876.47 = 425,264.40 : x
  2. Step 2: Convert to fraction form
    769,435.87/1,061,876.47 = 425,264.40/x
  3. Step 3: Cross multiply
    769,435.87x = 1,061,876.47 × 425,264.40
  4. Step 4: Simplify right side
    769,435.87x = 451,578,253,516.13
  5. Step 5: Solve for x
    x = 451,578,253,516.13/769,435.87
  6. Step 6: Final answer
    x = 586,895.25

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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.