Home / 1,120,039.95-1,680,056.74-278,591.70

Finding the Fourth Proportional to 1,120,039.95, 1,680,056.74 and 278,591.70

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Solution

The fourth proportional to 1,120,039.95, 1,680,056.74 and 278,591.70 is: 417,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,039.95 : 1,680,056.74 = 278,591.70 : x
  2. Step 2: Convert to fraction form
    1,120,039.95/1,680,056.74 = 278,591.70/x
  3. Step 3: Cross multiply
    1,120,039.95x = 1,680,056.74 × 278,591.70
  4. Step 4: Simplify right side
    1,120,039.95x = 468,049,869,941.51
  5. Step 5: Solve for x
    x = 468,049,869,941.51/1,120,039.95
  6. Step 6: Final answer
    x = 417,886.76

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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.