Home / 1,287,803.08-1,777,155.06-714,828.52

Finding the Fourth Proportional to 1,287,803.08, 1,777,155.06 and 714,828.52

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Solution

The fourth proportional to 1,287,803.08, 1,777,155.06 and 714,828.52 is: 986,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,803.08 : 1,777,155.06 = 714,828.52 : x
  2. Step 2: Convert to fraction form
    1,287,803.08/1,777,155.06 = 714,828.52/x
  3. Step 3: Cross multiply
    1,287,803.08x = 1,777,155.06 × 714,828.52
  4. Step 4: Simplify right side
    1,287,803.08x = 1,270,361,121,350.31
  5. Step 5: Solve for x
    x = 1,270,361,121,350.31/1,287,803.08
  6. Step 6: Final answer
    x = 986,456.04

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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.