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Finding the Fourth Proportional to 886,871.80, 1,330,307.70 and 381,674.80

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Solution

The fourth proportional to 886,871.80, 1,330,307.70 and 381,674.80 is: 572,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,871.80 : 1,330,307.70 = 381,674.80 : x
  2. Step 2: Convert to fraction form
    886,871.80/1,330,307.70 = 381,674.80/x
  3. Step 3: Cross multiply
    886,871.80x = 1,330,307.70 × 381,674.80
  4. Step 4: Simplify right side
    886,871.80x = 507,744,925,335.96
  5. Step 5: Solve for x
    x = 507,744,925,335.96/886,871.80
  6. Step 6: Final answer
    x = 572,512.20

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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.