Home / 1,186,022.16-1,636,708.40-642,158.48

Finding the Fourth Proportional to 1,186,022.16, 1,636,708.40 and 642,158.48

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Solution

The fourth proportional to 1,186,022.16, 1,636,708.40 and 642,158.48 is: 886,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,022.16 : 1,636,708.40 = 642,158.48 : x
  2. Step 2: Convert to fraction form
    1,186,022.16/1,636,708.40 = 642,158.48/x
  3. Step 3: Cross multiply
    1,186,022.16x = 1,636,708.40 × 642,158.48
  4. Step 4: Simplify right side
    1,186,022.16x = 1,051,026,178,347.23
  5. Step 5: Solve for x
    x = 1,051,026,178,347.23/1,186,022.16
  6. Step 6: Final answer
    x = 886,177.52

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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.