Home / 1,209,474.02-1,669,013.85-665,595.81

Finding the Fourth Proportional to 1,209,474.02, 1,669,013.85 and 665,595.81

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Solution

The fourth proportional to 1,209,474.02, 1,669,013.85 and 665,595.81 is: 918,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,474.02 : 1,669,013.85 = 665,595.81 : x
  2. Step 2: Convert to fraction form
    1,209,474.02/1,669,013.85 = 665,595.81/x
  3. Step 3: Cross multiply
    1,209,474.02x = 1,669,013.85 × 665,595.81
  4. Step 4: Simplify right side
    1,209,474.02x = 1,110,888,625,391.97
  5. Step 5: Solve for x
    x = 1,110,888,625,391.97/1,209,474.02
  6. Step 6: Final answer
    x = 918,489.04

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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.