Home / 983,998.80-1,476,581.40-648,002.70

Finding the Fourth Proportional to 983,998.80, 1,476,581.40 and 648,002.70

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Solution

The fourth proportional to 983,998.80, 1,476,581.40 and 648,002.70 is: 972,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,998.80 : 1,476,581.40 = 648,002.70 : x
  2. Step 2: Convert to fraction form
    983,998.80/1,476,581.40 = 648,002.70/x
  3. Step 3: Cross multiply
    983,998.80x = 1,476,581.40 × 648,002.70
  4. Step 4: Simplify right side
    983,998.80x = 956,828,733,969.78
  5. Step 5: Solve for x
    x = 956,828,733,969.78/983,998.80
  6. Step 6: Final answer
    x = 972,388.11

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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.