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Finding the Fourth Proportional to 478,242.60, 659,966.75 and 263,402.67

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Solution

The fourth proportional to 478,242.60, 659,966.75 and 263,402.67 is: 363,491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,242.60 : 659,966.75 = 263,402.67 : x
  2. Step 2: Convert to fraction form
    478,242.60/659,966.75 = 263,402.67/x
  3. Step 3: Cross multiply
    478,242.60x = 659,966.75 × 263,402.67
  4. Step 4: Simplify right side
    478,242.60x = 173,837,002,744.21
  5. Step 5: Solve for x
    x = 173,837,002,744.21/478,242.60
  6. Step 6: Final answer
    x = 363,491.25

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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.