Home / 728,695.23-1,006,005.95-511,570.19

Finding the Fourth Proportional to 728,695.23, 1,006,005.95 and 511,570.19

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Solution

The fourth proportional to 728,695.23, 1,006,005.95 and 511,570.19 is: 706,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,695.23 : 1,006,005.95 = 511,570.19 : x
  2. Step 2: Convert to fraction form
    728,695.23/1,006,005.95 = 511,570.19/x
  3. Step 3: Cross multiply
    728,695.23x = 1,006,005.95 × 511,570.19
  4. Step 4: Simplify right side
    728,695.23x = 514,642,647,394.75
  5. Step 5: Solve for x
    x = 514,642,647,394.75/728,695.23
  6. Step 6: Final answer
    x = 706,252.25

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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.