Home / 887,416.90-1,331,254.95-288,276.10

Finding the Fourth Proportional to 887,416.90, 1,331,254.95 and 288,276.10

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Solution

The fourth proportional to 887,416.90, 1,331,254.95 and 288,276.10 is: 432,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,416.90 : 1,331,254.95 = 288,276.10 : x
  2. Step 2: Convert to fraction form
    887,416.90/1,331,254.95 = 288,276.10/x
  3. Step 3: Cross multiply
    887,416.90x = 1,331,254.95 × 288,276.10
  4. Step 4: Simplify right side
    887,416.90x = 383,768,985,091.70
  5. Step 5: Solve for x
    x = 383,768,985,091.70/887,416.90
  6. Step 6: Final answer
    x = 432,456.25

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Double scale
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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.