Home / 1,000,305.30-1,377,513.06-869,425.50

Finding the Fourth Proportional to 1,000,305.30, 1,377,513.06 and 869,425.50

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Solution

The fourth proportional to 1,000,305.30, 1,377,513.06 and 869,425.50 is: 1,197,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,305.30 : 1,377,513.06 = 869,425.50 : x
  2. Step 2: Convert to fraction form
    1,000,305.30/1,377,513.06 = 869,425.50/x
  3. Step 3: Cross multiply
    1,000,305.30x = 1,377,513.06 × 869,425.50
  4. Step 4: Simplify right side
    1,000,305.30x = 1,197,644,980,947.03
  5. Step 5: Solve for x
    x = 1,197,644,980,947.03/1,000,305.30
  6. Step 6: Final answer
    x = 1,197,279.45

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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.