Home / 1,020,139.24-1,530,294.53-310,173.43

Finding the Fourth Proportional to 1,020,139.24, 1,530,294.53 and 310,173.43

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Solution

The fourth proportional to 1,020,139.24, 1,530,294.53 and 310,173.43 is: 465,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,139.24 : 1,530,294.53 = 310,173.43 : x
  2. Step 2: Convert to fraction form
    1,020,139.24/1,530,294.53 = 310,173.43/x
  3. Step 3: Cross multiply
    1,020,139.24x = 1,530,294.53 × 310,173.43
  4. Step 4: Simplify right side
    1,020,139.24x = 474,656,703,280.34
  5. Step 5: Solve for x
    x = 474,656,703,280.34/1,020,139.24
  6. Step 6: Final answer
    x = 465,286.19

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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.