Home / 890,234.20-1,335,351.30-357,837.40

Finding the Fourth Proportional to 890,234.20, 1,335,351.30 and 357,837.40

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Solution

The fourth proportional to 890,234.20, 1,335,351.30 and 357,837.40 is: 536,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,234.20 : 1,335,351.30 = 357,837.40 : x
  2. Step 2: Convert to fraction form
    890,234.20/1,335,351.30 = 357,837.40/x
  3. Step 3: Cross multiply
    890,234.20x = 1,335,351.30 × 357,837.40
  4. Step 4: Simplify right side
    890,234.20x = 477,838,637,278.62
  5. Step 5: Solve for x
    x = 477,838,637,278.62/890,234.20
  6. Step 6: Final answer
    x = 536,756.10

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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.