Home / 1,512,445.40-2,087,147.81-824,122.03

Finding the Fourth Proportional to 1,512,445.40, 2,087,147.81 and 824,122.03

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Solution

The fourth proportional to 1,512,445.40, 2,087,147.81 and 824,122.03 is: 1,137,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,445.40 : 2,087,147.81 = 824,122.03 : x
  2. Step 2: Convert to fraction form
    1,512,445.40/2,087,147.81 = 824,122.03/x
  3. Step 3: Cross multiply
    1,512,445.40x = 2,087,147.81 × 824,122.03
  4. Step 4: Simplify right side
    1,512,445.40x = 1,720,064,486,207.41
  5. Step 5: Solve for x
    x = 1,720,064,486,207.41/1,512,445.40
  6. Step 6: Final answer
    x = 1,137,273.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.