Home / 782,069.64-1,173,547.86-422,235.64

Finding the Fourth Proportional to 782,069.64, 1,173,547.86 and 422,235.64

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Solution

The fourth proportional to 782,069.64, 1,173,547.86 and 422,235.64 is: 633,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,069.64 : 1,173,547.86 = 422,235.64 : x
  2. Step 2: Convert to fraction form
    782,069.64/1,173,547.86 = 422,235.64/x
  3. Step 3: Cross multiply
    782,069.64x = 1,173,547.86 × 422,235.64
  4. Step 4: Simplify right side
    782,069.64x = 495,513,731,737.73
  5. Step 5: Solve for x
    x = 495,513,731,737.73/782,069.64
  6. Step 6: Final answer
    x = 633,592.85

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Double scale
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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.