Home / 877,146.36-1,315,766.16-278,154.76

Finding the Fourth Proportional to 877,146.36, 1,315,766.16 and 278,154.76

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Solution

The fourth proportional to 877,146.36, 1,315,766.16 and 278,154.76 is: 417,246.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,146.36 : 1,315,766.16 = 278,154.76 : x
  2. Step 2: Convert to fraction form
    877,146.36/1,315,766.16 = 278,154.76/x
  3. Step 3: Cross multiply
    877,146.36x = 1,315,766.16 × 278,154.76
  4. Step 4: Simplify right side
    877,146.36x = 365,986,620,450.92
  5. Step 5: Solve for x
    x = 365,986,620,450.92/877,146.36
  6. Step 6: Final answer
    x = 417,246.92

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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.