Home / 851,931.17-1,175,625.47-489,099.66

Finding the Fourth Proportional to 851,931.17, 1,175,625.47 and 489,099.66

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Solution

The fourth proportional to 851,931.17, 1,175,625.47 and 489,099.66 is: 674,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,931.17 : 1,175,625.47 = 489,099.66 : x
  2. Step 2: Convert to fraction form
    851,931.17/1,175,625.47 = 489,099.66/x
  3. Step 3: Cross multiply
    851,931.17x = 1,175,625.47 × 489,099.66
  4. Step 4: Simplify right side
    851,931.17x = 574,998,015,218.84
  5. Step 5: Solve for x
    x = 574,998,015,218.84/851,931.17
  6. Step 6: Final answer
    x = 674,934.83

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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.