Home / 1,287,187.58-1,776,358.88-714,281.06

Finding the Fourth Proportional to 1,287,187.58, 1,776,358.88 and 714,281.06

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Solution

The fourth proportional to 1,287,187.58, 1,776,358.88 and 714,281.06 is: 985,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,187.58 : 1,776,358.88 = 714,281.06 : x
  2. Step 2: Convert to fraction form
    1,287,187.58/1,776,358.88 = 714,281.06/x
  3. Step 3: Cross multiply
    1,287,187.58x = 1,776,358.88 × 714,281.06
  4. Step 4: Simplify right side
    1,287,187.58x = 1,268,819,503,746.81
  5. Step 5: Solve for x
    x = 1,268,819,503,746.81/1,287,187.58
  6. Step 6: Final answer
    x = 985,730.07

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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.