Home / 878,050.42-1,211,709.17-475,638.90

Finding the Fourth Proportional to 878,050.42, 1,211,709.17 and 475,638.90

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Solution

The fourth proportional to 878,050.42, 1,211,709.17 and 475,638.90 is: 656,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,050.42 : 1,211,709.17 = 475,638.90 : x
  2. Step 2: Convert to fraction form
    878,050.42/1,211,709.17 = 475,638.90/x
  3. Step 3: Cross multiply
    878,050.42x = 1,211,709.17 × 475,638.90
  4. Step 4: Simplify right side
    878,050.42x = 576,336,016,738.71
  5. Step 5: Solve for x
    x = 576,336,016,738.71/878,050.42
  6. Step 6: Final answer
    x = 656,381.46

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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.