Home / 1,538,567.70-2,307,851.55-685,637.70

Finding the Fourth Proportional to 1,538,567.70, 2,307,851.55 and 685,637.70

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Solution

The fourth proportional to 1,538,567.70, 2,307,851.55 and 685,637.70 is: 1,028,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,567.70 : 2,307,851.55 = 685,637.70 : x
  2. Step 2: Convert to fraction form
    1,538,567.70/2,307,851.55 = 685,637.70/x
  3. Step 3: Cross multiply
    1,538,567.70x = 2,307,851.55 × 685,637.70
  4. Step 4: Simplify right side
    1,538,567.70x = 1,582,350,028,683.43
  5. Step 5: Solve for x
    x = 1,582,350,028,683.43/1,538,567.70
  6. Step 6: Final answer
    x = 1,028,456.55

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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.