Home / 820,564.90-1,232,114.55-447,316.90

Finding the Fourth Proportional to 820,564.90, 1,232,114.55 and 447,316.90

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Solution

The fourth proportional to 820,564.90, 1,232,114.55 and 447,316.90 is: 671,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,564.90 : 1,232,114.55 = 447,316.90 : x
  2. Step 2: Convert to fraction form
    820,564.90/1,232,114.55 = 447,316.90/x
  3. Step 3: Cross multiply
    820,564.90x = 1,232,114.55 × 447,316.90
  4. Step 4: Simplify right side
    820,564.90x = 551,145,660,950.90
  5. Step 5: Solve for x
    x = 551,145,660,950.90/820,564.90
  6. Step 6: Final answer
    x = 671,666.14

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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.