Home / 1,360,189.28-1,877,030.88-787,217.96

Finding the Fourth Proportional to 1,360,189.28, 1,877,030.88 and 787,217.96

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Solution

The fourth proportional to 1,360,189.28, 1,877,030.88 and 787,217.96 is: 1,086,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,189.28 : 1,877,030.88 = 787,217.96 : x
  2. Step 2: Convert to fraction form
    1,360,189.28/1,877,030.88 = 787,217.96/x
  3. Step 3: Cross multiply
    1,360,189.28x = 1,877,030.88 × 787,217.96
  4. Step 4: Simplify right side
    1,360,189.28x = 1,477,632,420,210.60
  5. Step 5: Solve for x
    x = 1,477,632,420,210.60/1,360,189.28
  6. Step 6: Final answer
    x = 1,086,343.23

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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.