Home / 989,481.51-1,365,487.11-536,772.51

Finding the Fourth Proportional to 989,481.51, 1,365,487.11 and 536,772.51

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Solution

The fourth proportional to 989,481.51, 1,365,487.11 and 536,772.51 is: 740,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,481.51 : 1,365,487.11 = 536,772.51 : x
  2. Step 2: Convert to fraction form
    989,481.51/1,365,487.11 = 536,772.51/x
  3. Step 3: Cross multiply
    989,481.51x = 1,365,487.11 × 536,772.51
  4. Step 4: Simplify right side
    989,481.51x = 732,955,943,407.35
  5. Step 5: Solve for x
    x = 732,955,943,407.35/989,481.51
  6. Step 6: Final answer
    x = 740,747.49

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1.5x scale

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.