Home / 1,542,316.79-2,128,327.17-853,939.91

Finding the Fourth Proportional to 1,542,316.79, 2,128,327.17 and 853,939.91

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Solution

The fourth proportional to 1,542,316.79, 2,128,327.17 and 853,939.91 is: 1,178,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,316.79 : 2,128,327.17 = 853,939.91 : x
  2. Step 2: Convert to fraction form
    1,542,316.79/2,128,327.17 = 853,939.91/x
  3. Step 3: Cross multiply
    1,542,316.79x = 2,128,327.17 × 853,939.91
  4. Step 4: Simplify right side
    1,542,316.79x = 1,817,463,512,000.35
  5. Step 5: Solve for x
    x = 1,817,463,512,000.35/1,542,316.79
  6. Step 6: Final answer
    x = 1,178,398.32

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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.