Home / 1,352,587.38-1,867,835.02-869,990.30

Finding the Fourth Proportional to 1,352,587.38, 1,867,835.02 and 869,990.30

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Solution

The fourth proportional to 1,352,587.38, 1,867,835.02 and 869,990.30 is: 1,201,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,587.38 : 1,867,835.02 = 869,990.30 : x
  2. Step 2: Convert to fraction form
    1,352,587.38/1,867,835.02 = 869,990.30/x
  3. Step 3: Cross multiply
    1,352,587.38x = 1,867,835.02 × 869,990.30
  4. Step 4: Simplify right side
    1,352,587.38x = 1,624,998,349,400.31
  5. Step 5: Solve for x
    x = 1,624,998,349,400.31/1,352,587.38
  6. Step 6: Final answer
    x = 1,201,399.90

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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.