Home / 983,445.20-1,475,216.40-511,053.20

Finding the Fourth Proportional to 983,445.20, 1,475,216.40 and 511,053.20

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Solution

The fourth proportional to 983,445.20, 1,475,216.40 and 511,053.20 is: 766,605.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,445.20 : 1,475,216.40 = 511,053.20 : x
  2. Step 2: Convert to fraction form
    983,445.20/1,475,216.40 = 511,053.20/x
  3. Step 3: Cross multiply
    983,445.20x = 1,475,216.40 × 511,053.20
  4. Step 4: Simplify right side
    983,445.20x = 753,914,061,912.48
  5. Step 5: Solve for x
    x = 753,914,061,912.48/983,445.20
  6. Step 6: Final answer
    x = 766,605.06

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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.