Home / 1,186,045.98-1,636,744.20-642,182.13

Finding the Fourth Proportional to 1,186,045.98, 1,636,744.20 and 642,182.13

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Solution

The fourth proportional to 1,186,045.98, 1,636,744.20 and 642,182.13 is: 886,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,045.98 : 1,636,744.20 = 642,182.13 : x
  2. Step 2: Convert to fraction form
    1,186,045.98/1,636,744.20 = 642,182.13/x
  3. Step 3: Cross multiply
    1,186,045.98x = 1,636,744.20 × 642,182.13
  4. Step 4: Simplify right side
    1,186,045.98x = 1,051,087,876,621.15
  5. Step 5: Solve for x
    x = 1,051,087,876,621.15/1,186,045.98
  6. Step 6: Final answer
    x = 886,211.74

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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.