Home / 1,318,871.11-1,820,042.13-745,898.98

Finding the Fourth Proportional to 1,318,871.11, 1,820,042.13 and 745,898.98

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Solution

The fourth proportional to 1,318,871.11, 1,820,042.13 and 745,898.98 is: 1,029,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,871.11 : 1,820,042.13 = 745,898.98 : x
  2. Step 2: Convert to fraction form
    1,318,871.11/1,820,042.13 = 745,898.98/x
  3. Step 3: Cross multiply
    1,318,871.11x = 1,820,042.13 × 745,898.98
  4. Step 4: Simplify right side
    1,318,871.11x = 1,357,567,567,885.78
  5. Step 5: Solve for x
    x = 1,357,567,567,885.78/1,318,871.11
  6. Step 6: Final answer
    x = 1,029,340.59

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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.