Home / 1,107,655.49-1,527,805.80-678,147.86

Finding the Fourth Proportional to 1,107,655.49, 1,527,805.80 and 678,147.86

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Solution

The fourth proportional to 1,107,655.49, 1,527,805.80 and 678,147.86 is: 935,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,655.49 : 1,527,805.80 = 678,147.86 : x
  2. Step 2: Convert to fraction form
    1,107,655.49/1,527,805.80 = 678,147.86/x
  3. Step 3: Cross multiply
    1,107,655.49x = 1,527,805.80 × 678,147.86
  4. Step 4: Simplify right side
    1,107,655.49x = 1,036,078,237,585.10
  5. Step 5: Solve for x
    x = 1,036,078,237,585.10/1,107,655.49
  6. Step 6: Final answer
    x = 935,379.50

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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.