Home / 1,020,809.20-1,531,540.20-310,972.40

Finding the Fourth Proportional to 1,020,809.20, 1,531,540.20 and 310,972.40

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Solution

The fourth proportional to 1,020,809.20, 1,531,540.20 and 310,972.40 is: 466,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,809.20 : 1,531,540.20 = 310,972.40 : x
  2. Step 2: Convert to fraction form
    1,020,809.20/1,531,540.20 = 310,972.40/x
  3. Step 3: Cross multiply
    1,020,809.20x = 1,531,540.20 × 310,972.40
  4. Step 4: Simplify right side
    1,020,809.20x = 476,266,731,690.48
  5. Step 5: Solve for x
    x = 476,266,731,690.48/1,020,809.20
  6. Step 6: Final answer
    x = 466,558.03

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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.