Home / 880,081.28-1,214,479.68-477,664.64

Finding the Fourth Proportional to 880,081.28, 1,214,479.68 and 477,664.64

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Solution

The fourth proportional to 880,081.28, 1,214,479.68 and 477,664.64 is: 659,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,081.28 : 1,214,479.68 = 477,664.64 : x
  2. Step 2: Convert to fraction form
    880,081.28/1,214,479.68 = 477,664.64/x
  3. Step 3: Cross multiply
    880,081.28x = 1,214,479.68 × 477,664.64
  4. Step 4: Simplify right side
    880,081.28x = 580,113,999,134.52
  5. Step 5: Solve for x
    x = 580,113,999,134.52/880,081.28
  6. Step 6: Final answer
    x = 659,159.57

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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.