Home / 806,543.13-1,209,814.49-301,143.53

Finding the Fourth Proportional to 806,543.13, 1,209,814.49 and 301,143.53

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Solution

The fourth proportional to 806,543.13, 1,209,814.49 and 301,143.53 is: 451,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,543.13 : 1,209,814.49 = 301,143.53 : x
  2. Step 2: Convert to fraction form
    806,543.13/1,209,814.49 = 301,143.53/x
  3. Step 3: Cross multiply
    806,543.13x = 1,209,814.49 × 301,143.53
  4. Step 4: Simplify right side
    806,543.13x = 364,327,798,608.96
  5. Step 5: Solve for x
    x = 364,327,798,608.96/806,543.13
  6. Step 6: Final answer
    x = 451,715.21

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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.