Home / 758,888.54-1,047,287.31-419,378.66

Finding the Fourth Proportional to 758,888.54, 1,047,287.31 and 419,378.66

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Solution

The fourth proportional to 758,888.54, 1,047,287.31 and 419,378.66 is: 578,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,888.54 : 1,047,287.31 = 419,378.66 : x
  2. Step 2: Convert to fraction form
    758,888.54/1,047,287.31 = 419,378.66/x
  3. Step 3: Cross multiply
    758,888.54x = 1,047,287.31 × 419,378.66
  4. Step 4: Simplify right side
    758,888.54x = 439,209,948,702.81
  5. Step 5: Solve for x
    x = 439,209,948,702.81/758,888.54
  6. Step 6: Final answer
    x = 578,754.22

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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.