Home / 887,881.20-1,331,821.80-355,484.40

Finding the Fourth Proportional to 887,881.20, 1,331,821.80 and 355,484.40

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Solution

The fourth proportional to 887,881.20, 1,331,821.80 and 355,484.40 is: 533,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,881.20 : 1,331,821.80 = 355,484.40 : x
  2. Step 2: Convert to fraction form
    887,881.20/1,331,821.80 = 355,484.40/x
  3. Step 3: Cross multiply
    887,881.20x = 1,331,821.80 × 355,484.40
  4. Step 4: Simplify right side
    887,881.20x = 473,441,873,479.92
  5. Step 5: Solve for x
    x = 473,441,873,479.92/887,881.20
  6. Step 6: Final answer
    x = 533,226.60

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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.