Home / 1,207,741.05-1,666,663.94-663,865.18

Finding the Fourth Proportional to 1,207,741.05, 1,666,663.94 and 663,865.18

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Solution

The fourth proportional to 1,207,741.05, 1,666,663.94 and 663,865.18 is: 916,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,741.05 : 1,666,663.94 = 663,865.18 : x
  2. Step 2: Convert to fraction form
    1,207,741.05/1,666,663.94 = 663,865.18/x
  3. Step 3: Cross multiply
    1,207,741.05x = 1,666,663.94 × 663,865.18
  4. Step 4: Simplify right side
    1,207,741.05x = 1,106,440,154,020.61
  5. Step 5: Solve for x
    x = 1,106,440,154,020.61/1,207,741.05
  6. Step 6: Final answer
    x = 916,123.66

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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.