Home / 877,143.34-1,315,761.66-278,151.76

Finding the Fourth Proportional to 877,143.34, 1,315,761.66 and 278,151.76

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Solution

The fourth proportional to 877,143.34, 1,315,761.66 and 278,151.76 is: 417,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,143.34 : 1,315,761.66 = 278,151.76 : x
  2. Step 2: Convert to fraction form
    877,143.34/1,315,761.66 = 278,151.76/x
  3. Step 3: Cross multiply
    877,143.34x = 1,315,761.66 × 278,151.76
  4. Step 4: Simplify right side
    877,143.34x = 365,981,421,469.52
  5. Step 5: Solve for x
    x = 365,981,421,469.52/877,143.34
  6. Step 6: Final answer
    x = 417,242.43

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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.