Home / 1,287,187.56-1,776,331.08-714,281.04

Finding the Fourth Proportional to 1,287,187.56, 1,776,331.08 and 714,281.04

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Solution

The fourth proportional to 1,287,187.56, 1,776,331.08 and 714,281.04 is: 985,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,187.56 : 1,776,331.08 = 714,281.04 : x
  2. Step 2: Convert to fraction form
    1,287,187.56/1,776,331.08 = 714,281.04/x
  3. Step 3: Cross multiply
    1,287,187.56x = 1,776,331.08 × 714,281.04
  4. Step 4: Simplify right side
    1,287,187.56x = 1,268,799,611,206.72
  5. Step 5: Solve for x
    x = 1,268,799,611,206.72/1,287,187.56
  6. Step 6: Final answer
    x = 985,714.63

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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.