Home / 687,422.98-1,030,888.47-238,023.19

Finding the Fourth Proportional to 687,422.98, 1,030,888.47 and 238,023.19

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Solution

The fourth proportional to 687,422.98, 1,030,888.47 and 238,023.19 is: 356,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,422.98 : 1,030,888.47 = 238,023.19 : x
  2. Step 2: Convert to fraction form
    687,422.98/1,030,888.47 = 238,023.19/x
  3. Step 3: Cross multiply
    687,422.98x = 1,030,888.47 × 238,023.19
  4. Step 4: Simplify right side
    687,422.98x = 245,375,357,009.18
  5. Step 5: Solve for x
    x = 245,375,357,009.18/687,422.98
  6. Step 6: Final answer
    x = 356,949.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.