Home / 820,565.40-1,232,115.30-447,317.40

Finding the Fourth Proportional to 820,565.40, 1,232,115.30 and 447,317.40

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Solution

The fourth proportional to 820,565.40, 1,232,115.30 and 447,317.40 is: 671,666.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,565.40 : 1,232,115.30 = 447,317.40 : x
  2. Step 2: Convert to fraction form
    820,565.40/1,232,115.30 = 447,317.40/x
  3. Step 3: Cross multiply
    820,565.40x = 1,232,115.30 × 447,317.40
  4. Step 4: Simplify right side
    820,565.40x = 551,146,612,496.22
  5. Step 5: Solve for x
    x = 551,146,612,496.22/820,565.40
  6. Step 6: Final answer
    x = 671,666.89

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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.