Home / 1,209,382.92-1,669,017.36-693,222.72

Finding the Fourth Proportional to 1,209,382.92, 1,669,017.36 and 693,222.72

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Solution

The fourth proportional to 1,209,382.92, 1,669,017.36 and 693,222.72 is: 956,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,382.92 : 1,669,017.36 = 693,222.72 : x
  2. Step 2: Convert to fraction form
    1,209,382.92/1,669,017.36 = 693,222.72/x
  3. Step 3: Cross multiply
    1,209,382.92x = 1,669,017.36 × 693,222.72
  4. Step 4: Simplify right side
    1,209,382.92x = 1,157,000,754,026.42
  5. Step 5: Solve for x
    x = 1,157,000,754,026.42/1,209,382.92
  6. Step 6: Final answer
    x = 956,686.86

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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.