Home / 815,830.60-1,223,745.90-724,851.40

Finding the Fourth Proportional to 815,830.60, 1,223,745.90 and 724,851.40

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Solution

The fourth proportional to 815,830.60, 1,223,745.90 and 724,851.40 is: 1,087,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,830.60 : 1,223,745.90 = 724,851.40 : x
  2. Step 2: Convert to fraction form
    815,830.60/1,223,745.90 = 724,851.40/x
  3. Step 3: Cross multiply
    815,830.60x = 1,223,745.90 × 724,851.40
  4. Step 4: Simplify right side
    815,830.60x = 887,033,928,859.26
  5. Step 5: Solve for x
    x = 887,033,928,859.26/815,830.60
  6. Step 6: Final answer
    x = 1,087,277.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.