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Finding the Fourth Proportional to 522,054.80, 783,082.20 and 256,334.30

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Solution

The fourth proportional to 522,054.80, 783,082.20 and 256,334.30 is: 384,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,054.80 : 783,082.20 = 256,334.30 : x
  2. Step 2: Convert to fraction form
    522,054.80/783,082.20 = 256,334.30/x
  3. Step 3: Cross multiply
    522,054.80x = 783,082.20 × 256,334.30
  4. Step 4: Simplify right side
    522,054.80x = 200,730,827,579.46
  5. Step 5: Solve for x
    x = 200,730,827,579.46/522,054.80
  6. Step 6: Final answer
    x = 384,501.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.