Home / 1,986,903.47-2,980,799.60-724,731.10

Finding the Fourth Proportional to 1,986,903.47, 2,980,799.60 and 724,731.10

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Solution

The fourth proportional to 1,986,903.47, 2,980,799.60 and 724,731.10 is: 1,087,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,903.47 : 2,980,799.60 = 724,731.10 : x
  2. Step 2: Convert to fraction form
    1,986,903.47/2,980,799.60 = 724,731.10/x
  3. Step 3: Cross multiply
    1,986,903.47x = 2,980,799.60 × 724,731.10
  4. Step 4: Simplify right side
    1,986,903.47x = 2,160,278,161,911.91
  5. Step 5: Solve for x
    x = 2,160,278,161,911.91/1,986,903.47
  6. Step 6: Final answer
    x = 1,087,258.74

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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.