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Finding the Fourth Proportional to 1,152,988.54, 1,721,913.18 and 982,694.14

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Solution

The fourth proportional to 1,152,988.54, 1,721,913.18 and 982,694.14 is: 1,467,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,988.54 : 1,721,913.18 = 982,694.14 : x
  2. Step 2: Convert to fraction form
    1,152,988.54/1,721,913.18 = 982,694.14/x
  3. Step 3: Cross multiply
    1,152,988.54x = 1,721,913.18 × 982,694.14
  4. Step 4: Simplify right side
    1,152,988.54x = 1,692,113,991,574.77
  5. Step 5: Solve for x
    x = 1,692,113,991,574.77/1,152,988.54
  6. Step 6: Final answer
    x = 1,467,589.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.