Home / 1,065,240.80-1,595,787.60-643,263.20

Finding the Fourth Proportional to 1,065,240.80, 1,595,787.60 and 643,263.20

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Solution

The fourth proportional to 1,065,240.80, 1,595,787.60 and 643,263.20 is: 963,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,240.80 : 1,595,787.60 = 643,263.20 : x
  2. Step 2: Convert to fraction form
    1,065,240.80/1,595,787.60 = 643,263.20/x
  3. Step 3: Cross multiply
    1,065,240.80x = 1,595,787.60 × 643,263.20
  4. Step 4: Simplify right side
    1,065,240.80x = 1,026,511,438,096.32
  5. Step 5: Solve for x
    x = 1,026,511,438,096.32/1,065,240.80
  6. Step 6: Final answer
    x = 963,642.62

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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.