Home / 861,493.38-1,289,982.79-607,398.40

Finding the Fourth Proportional to 861,493.38, 1,289,982.79 and 607,398.40

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Solution

The fourth proportional to 861,493.38, 1,289,982.79 and 607,398.40 is: 909,506.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,493.38 : 1,289,982.79 = 607,398.40 : x
  2. Step 2: Convert to fraction form
    861,493.38/1,289,982.79 = 607,398.40/x
  3. Step 3: Cross multiply
    861,493.38x = 1,289,982.79 × 607,398.40
  4. Step 4: Simplify right side
    861,493.38x = 783,533,482,673.54
  5. Step 5: Solve for x
    x = 783,533,482,673.54/861,493.38
  6. Step 6: Final answer
    x = 909,506.10

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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.