Home / 875,077.20-1,312,761.60-342,615.60

Finding the Fourth Proportional to 875,077.20, 1,312,761.60 and 342,615.60

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Solution

The fourth proportional to 875,077.20, 1,312,761.60 and 342,615.60 is: 513,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,077.20 : 1,312,761.60 = 342,615.60 : x
  2. Step 2: Convert to fraction form
    875,077.20/1,312,761.60 = 342,615.60/x
  3. Step 3: Cross multiply
    875,077.20x = 1,312,761.60 × 342,615.60
  4. Step 4: Simplify right side
    875,077.20x = 449,772,603,240.96
  5. Step 5: Solve for x
    x = 449,772,603,240.96/875,077.20
  6. Step 6: Final answer
    x = 513,980.48

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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.