Home / 1,100,344.50-1,518,479.56-641,775.76

Finding the Fourth Proportional to 1,100,344.50, 1,518,479.56 and 641,775.76

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Solution

The fourth proportional to 1,100,344.50, 1,518,479.56 and 641,775.76 is: 885,652.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,344.50 : 1,518,479.56 = 641,775.76 : x
  2. Step 2: Convert to fraction form
    1,100,344.50/1,518,479.56 = 641,775.76/x
  3. Step 3: Cross multiply
    1,100,344.50x = 1,518,479.56 × 641,775.76
  4. Step 4: Simplify right side
    1,100,344.50x = 974,523,370,669.49
  5. Step 5: Solve for x
    x = 974,523,370,669.49/1,100,344.50
  6. Step 6: Final answer
    x = 885,652.97

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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.