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Finding the Fourth Proportional to 488,313.40, 732,032.70 and 319,914.40

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Solution

The fourth proportional to 488,313.40, 732,032.70 and 319,914.40 is: 479,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,313.40 : 732,032.70 = 319,914.40 : x
  2. Step 2: Convert to fraction form
    488,313.40/732,032.70 = 319,914.40/x
  3. Step 3: Cross multiply
    488,313.40x = 732,032.70 × 319,914.40
  4. Step 4: Simplify right side
    488,313.40x = 234,187,802,000.88
  5. Step 5: Solve for x
    x = 234,187,802,000.88/488,313.40
  6. Step 6: Final answer
    x = 479,585.04

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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.