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Finding the Fourth Proportional to 887,360, 1,224,128.64 and 581,302.88

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Solution

The fourth proportional to 887,360, 1,224,128.64 and 581,302.88 is: 801,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,360 : 1,224,128.64 = 581,302.88 : x
  2. Step 2: Convert to fraction form
    887,360/1,224,128.64 = 581,302.88/x
  3. Step 3: Cross multiply
    887,360x = 1,224,128.64 × 581,302.88
  4. Step 4: Simplify right side
    887,360x = 711,589,503,922.48
  5. Step 5: Solve for x
    x = 711,589,503,922.48/887,360
  6. Step 6: Final answer
    x = 801,917.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.