Home / 879,405.20-1,314,960.60-655,456.40

Finding the Fourth Proportional to 879,405.20, 1,314,960.60 and 655,456.40

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Solution

The fourth proportional to 879,405.20, 1,314,960.60 and 655,456.40 is: 980,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,405.20 : 1,314,960.60 = 655,456.40 : x
  2. Step 2: Convert to fraction form
    879,405.20/1,314,960.60 = 655,456.40/x
  3. Step 3: Cross multiply
    879,405.20x = 1,314,960.60 × 655,456.40
  4. Step 4: Simplify right side
    879,405.20x = 861,899,341,017.84
  5. Step 5: Solve for x
    x = 861,899,341,017.84/879,405.20
  6. Step 6: Final answer
    x = 980,093.52

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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.