Home / 972,129.20-1,458,193.80-617,543.60

Finding the Fourth Proportional to 972,129.20, 1,458,193.80 and 617,543.60

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Solution

The fourth proportional to 972,129.20, 1,458,193.80 and 617,543.60 is: 926,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,129.20 : 1,458,193.80 = 617,543.60 : x
  2. Step 2: Convert to fraction form
    972,129.20/1,458,193.80 = 617,543.60/x
  3. Step 3: Cross multiply
    972,129.20x = 1,458,193.80 × 617,543.60
  4. Step 4: Simplify right side
    972,129.20x = 900,498,248,749.68
  5. Step 5: Solve for x
    x = 900,498,248,749.68/972,129.20
  6. Step 6: Final answer
    x = 926,315.40

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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.