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Finding the Fourth Proportional to 672,142, 927,558.84 and 370,329.52

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Solution

The fourth proportional to 672,142, 927,558.84 and 370,329.52 is: 511,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,142 : 927,558.84 = 370,329.52 : x
  2. Step 2: Convert to fraction form
    672,142/927,558.84 = 370,329.52/x
  3. Step 3: Cross multiply
    672,142x = 927,558.84 × 370,329.52
  4. Step 4: Simplify right side
    672,142x = 343,502,419,988.96
  5. Step 5: Solve for x
    x = 343,502,419,988.96/672,142
  6. Step 6: Final answer
    x = 511,056.32

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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.