Home / 887,138.64-1,330,706.61-354,784.50

Finding the Fourth Proportional to 887,138.64, 1,330,706.61 and 354,784.50

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Solution

The fourth proportional to 887,138.64, 1,330,706.61 and 354,784.50 is: 532,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,138.64 : 1,330,706.61 = 354,784.50 : x
  2. Step 2: Convert to fraction form
    887,138.64/1,330,706.61 = 354,784.50/x
  3. Step 3: Cross multiply
    887,138.64x = 1,330,706.61 × 354,784.50
  4. Step 4: Simplify right side
    887,138.64x = 472,114,079,275.55
  5. Step 5: Solve for x
    x = 472,114,079,275.55/887,138.64
  6. Step 6: Final answer
    x = 532,176.21

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Double scale
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Similar ratio
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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.