Home / 763,333.70-1,145,000.55-264,748.10

Finding the Fourth Proportional to 763,333.70, 1,145,000.55 and 264,748.10

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Solution

The fourth proportional to 763,333.70, 1,145,000.55 and 264,748.10 is: 397,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,333.70 : 1,145,000.55 = 264,748.10 : x
  2. Step 2: Convert to fraction form
    763,333.70/1,145,000.55 = 264,748.10/x
  3. Step 3: Cross multiply
    763,333.70x = 1,145,000.55 × 264,748.10
  4. Step 4: Simplify right side
    763,333.70x = 303,136,720,111.46
  5. Step 5: Solve for x
    x = 303,136,720,111.46/763,333.70
  6. Step 6: Final answer
    x = 397,122.15

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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.