Home / 881,011.20-1,321,516.80-249,945.60

Finding the Fourth Proportional to 881,011.20, 1,321,516.80 and 249,945.60

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Solution

The fourth proportional to 881,011.20, 1,321,516.80 and 249,945.60 is: 374,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,011.20 : 1,321,516.80 = 249,945.60 : x
  2. Step 2: Convert to fraction form
    881,011.20/1,321,516.80 = 249,945.60/x
  3. Step 3: Cross multiply
    881,011.20x = 1,321,516.80 × 249,945.60
  4. Step 4: Simplify right side
    881,011.20x = 330,307,309,486.08
  5. Step 5: Solve for x
    x = 330,307,309,486.08/881,011.20
  6. Step 6: Final answer
    x = 374,918.40

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Double scale
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Similar ratio
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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.