Home / 1,207,490.46-1,666,374.35-663,616.38

Finding the Fourth Proportional to 1,207,490.46, 1,666,374.35 and 663,616.38

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Solution

The fourth proportional to 1,207,490.46, 1,666,374.35 and 663,616.38 is: 915,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,490.46 : 1,666,374.35 = 663,616.38 : x
  2. Step 2: Convert to fraction form
    1,207,490.46/1,666,374.35 = 663,616.38/x
  3. Step 3: Cross multiply
    1,207,490.46x = 1,666,374.35 × 663,616.38
  4. Step 4: Simplify right side
    1,207,490.46x = 1,105,833,310,553.77
  5. Step 5: Solve for x
    x = 1,105,833,310,553.77/1,207,490.46
  6. Step 6: Final answer
    x = 915,811.22

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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.