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Finding the Fourth Proportional to 578,267.60, 867,401.40 and 204,328.40

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Solution

The fourth proportional to 578,267.60, 867,401.40 and 204,328.40 is: 306,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,267.60 : 867,401.40 = 204,328.40 : x
  2. Step 2: Convert to fraction form
    578,267.60/867,401.40 = 204,328.40/x
  3. Step 3: Cross multiply
    578,267.60x = 867,401.40 × 204,328.40
  4. Step 4: Simplify right side
    578,267.60x = 177,234,740,219.76
  5. Step 5: Solve for x
    x = 177,234,740,219.76/578,267.60
  6. Step 6: Final answer
    x = 306,492.60

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Half scale
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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.