Home / 887,317.20-1,330,975.80-414,925.20

Finding the Fourth Proportional to 887,317.20, 1,330,975.80 and 414,925.20

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Solution

The fourth proportional to 887,317.20, 1,330,975.80 and 414,925.20 is: 622,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,317.20 : 1,330,975.80 = 414,925.20 : x
  2. Step 2: Convert to fraction form
    887,317.20/1,330,975.80 = 414,925.20/x
  3. Step 3: Cross multiply
    887,317.20x = 1,330,975.80 × 414,925.20
  4. Step 4: Simplify right side
    887,317.20x = 552,255,400,010.16
  5. Step 5: Solve for x
    x = 552,255,400,010.16/887,317.20
  6. Step 6: Final answer
    x = 622,387.80

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1.5x scale

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.