Home / 1,186,144.04-1,636,876.46-642,278.18

Finding the Fourth Proportional to 1,186,144.04, 1,636,876.46 and 642,278.18

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Solution

The fourth proportional to 1,186,144.04, 1,636,876.46 and 642,278.18 is: 886,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,144.04 : 1,636,876.46 = 642,278.18 : x
  2. Step 2: Convert to fraction form
    1,186,144.04/1,636,876.46 = 642,278.18/x
  3. Step 3: Cross multiply
    1,186,144.04x = 1,636,876.46 × 642,278.18
  4. Step 4: Simplify right side
    1,186,144.04x = 1,051,330,033,613.64
  5. Step 5: Solve for x
    x = 1,051,330,033,613.64/1,186,144.04
  6. Step 6: Final answer
    x = 886,342.63

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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.