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Finding the Fourth Proportional to 488,606.30, 732,909.45 and 311,896.70

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Solution

The fourth proportional to 488,606.30, 732,909.45 and 311,896.70 is: 467,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,606.30 : 732,909.45 = 311,896.70 : x
  2. Step 2: Convert to fraction form
    488,606.30/732,909.45 = 311,896.70/x
  3. Step 3: Cross multiply
    488,606.30x = 732,909.45 × 311,896.70
  4. Step 4: Simplify right side
    488,606.30x = 228,592,038,853.82
  5. Step 5: Solve for x
    x = 228,592,038,853.82/488,606.30
  6. Step 6: Final answer
    x = 467,845.05

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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.