Home / 1,267,243.50-1,748,365.47-722,988.30

Finding the Fourth Proportional to 1,267,243.50, 1,748,365.47 and 722,988.30

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Solution

The fourth proportional to 1,267,243.50, 1,748,365.47 and 722,988.30 is: 997,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,243.50 : 1,748,365.47 = 722,988.30 : x
  2. Step 2: Convert to fraction form
    1,267,243.50/1,748,365.47 = 722,988.30/x
  3. Step 3: Cross multiply
    1,267,243.50x = 1,748,365.47 × 722,988.30
  4. Step 4: Simplify right side
    1,267,243.50x = 1,264,047,778,934.00
  5. Step 5: Solve for x
    x = 1,264,047,778,934.00/1,267,243.50
  6. Step 6: Final answer
    x = 997,478.21

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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.