Home / 887,042.80-1,330,564.20-326,004.40

Finding the Fourth Proportional to 887,042.80, 1,330,564.20 and 326,004.40

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Solution

The fourth proportional to 887,042.80, 1,330,564.20 and 326,004.40 is: 489,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,042.80 : 1,330,564.20 = 326,004.40 : x
  2. Step 2: Convert to fraction form
    887,042.80/1,330,564.20 = 326,004.40/x
  3. Step 3: Cross multiply
    887,042.80x = 1,330,564.20 × 326,004.40
  4. Step 4: Simplify right side
    887,042.80x = 433,769,783,682.48
  5. Step 5: Solve for x
    x = 433,769,783,682.48/887,042.80
  6. Step 6: Final answer
    x = 489,006.60

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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.