Home / 1,390,618.17-2,082,398.90-1,165,386.33

Finding the Fourth Proportional to 1,390,618.17, 2,082,398.90 and 1,165,386.33

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Solution

The fourth proportional to 1,390,618.17, 2,082,398.90 and 1,165,386.33 is: 1,745,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,618.17 : 2,082,398.90 = 1,165,386.33 : x
  2. Step 2: Convert to fraction form
    1,390,618.17/2,082,398.90 = 1,165,386.33/x
  3. Step 3: Cross multiply
    1,390,618.17x = 2,082,398.90 × 1,165,386.33
  4. Step 4: Simplify right side
    1,390,618.17x = 2,426,799,205,840.11
  5. Step 5: Solve for x
    x = 2,426,799,205,840.11/1,390,618.17
  6. Step 6: Final answer
    x = 1,745,122.61

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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.