Home / 743,363.70-1,115,045.55-210,902.10

Finding the Fourth Proportional to 743,363.70, 1,115,045.55 and 210,902.10

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Solution

The fourth proportional to 743,363.70, 1,115,045.55 and 210,902.10 is: 316,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,363.70 : 1,115,045.55 = 210,902.10 : x
  2. Step 2: Convert to fraction form
    743,363.70/1,115,045.55 = 210,902.10/x
  3. Step 3: Cross multiply
    743,363.70x = 1,115,045.55 × 210,902.10
  4. Step 4: Simplify right side
    743,363.70x = 235,165,448,090.66
  5. Step 5: Solve for x
    x = 235,165,448,090.66/743,363.70
  6. Step 6: Final answer
    x = 316,353.15

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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.