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Finding the Fourth Proportional to 559,224.72, 771,749.46 and 317,499.30

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Solution

The fourth proportional to 559,224.72, 771,749.46 and 317,499.30 is: 438,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,224.72 : 771,749.46 = 317,499.30 : x
  2. Step 2: Convert to fraction form
    559,224.72/771,749.46 = 317,499.30/x
  3. Step 3: Cross multiply
    559,224.72x = 771,749.46 × 317,499.30
  4. Step 4: Simplify right side
    559,224.72x = 245,029,913,325.38
  5. Step 5: Solve for x
    x = 245,029,913,325.38/559,224.72
  6. Step 6: Final answer
    x = 438,160.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.