Home / 887,120.80-1,330,681.20-326,082.40

Finding the Fourth Proportional to 887,120.80, 1,330,681.20 and 326,082.40

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Solution

The fourth proportional to 887,120.80, 1,330,681.20 and 326,082.40 is: 489,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,120.80 : 1,330,681.20 = 326,082.40 : x
  2. Step 2: Convert to fraction form
    887,120.80/1,330,681.20 = 326,082.40/x
  3. Step 3: Cross multiply
    887,120.80x = 1,330,681.20 × 326,082.40
  4. Step 4: Simplify right side
    887,120.80x = 433,911,719,330.88
  5. Step 5: Solve for x
    x = 433,911,719,330.88/887,120.80
  6. Step 6: Final answer
    x = 489,123.60

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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.