Home / 784,280.16-1,082,641.56-664,049.83

Finding the Fourth Proportional to 784,280.16, 1,082,641.56 and 664,049.83

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Solution

The fourth proportional to 784,280.16, 1,082,641.56 and 664,049.83 is: 916,672.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,280.16 : 1,082,641.56 = 664,049.83 : x
  2. Step 2: Convert to fraction form
    784,280.16/1,082,641.56 = 664,049.83/x
  3. Step 3: Cross multiply
    784,280.16x = 1,082,641.56 × 664,049.83
  4. Step 4: Simplify right side
    784,280.16x = 718,927,943,868.94
  5. Step 5: Solve for x
    x = 718,927,943,868.94/784,280.16
  6. Step 6: Final answer
    x = 916,672.36

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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.