Home / 821,543.27-1,232,301.57-316,214.03

Finding the Fourth Proportional to 821,543.27, 1,232,301.57 and 316,214.03

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Solution

The fourth proportional to 821,543.27, 1,232,301.57 and 316,214.03 is: 474,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,543.27 : 1,232,301.57 = 316,214.03 : x
  2. Step 2: Convert to fraction form
    821,543.27/1,232,301.57 = 316,214.03/x
  3. Step 3: Cross multiply
    821,543.27x = 1,232,301.57 × 316,214.03
  4. Step 4: Simplify right side
    821,543.27x = 389,671,039,463.52
  5. Step 5: Solve for x
    x = 389,671,039,463.52/821,543.27
  6. Step 6: Final answer
    x = 474,315.91

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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.