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Finding the Fourth Proportional to 566,103.84, 781,222.08 and 311,454.48

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Solution

The fourth proportional to 566,103.84, 781,222.08 and 311,454.48 is: 429,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,103.84 : 781,222.08 = 311,454.48 : x
  2. Step 2: Convert to fraction form
    566,103.84/781,222.08 = 311,454.48/x
  3. Step 3: Cross multiply
    566,103.84x = 781,222.08 × 311,454.48
  4. Step 4: Simplify right side
    566,103.84x = 243,315,116,690.92
  5. Step 5: Solve for x
    x = 243,315,116,690.92/566,103.84
  6. Step 6: Final answer
    x = 429,806.51

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Double scale
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Similar ratio
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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.