Home / 1,020,226.80-1,530,923.40-389,593.20

Finding the Fourth Proportional to 1,020,226.80, 1,530,923.40 and 389,593.20

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Solution

The fourth proportional to 1,020,226.80, 1,530,923.40 and 389,593.20 is: 584,612.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,226.80 : 1,530,923.40 = 389,593.20 : x
  2. Step 2: Convert to fraction form
    1,020,226.80/1,530,923.40 = 389,593.20/x
  3. Step 3: Cross multiply
    1,020,226.80x = 1,530,923.40 × 389,593.20
  4. Step 4: Simplify right side
    1,020,226.80x = 596,437,346,360.88
  5. Step 5: Solve for x
    x = 596,437,346,360.88/1,020,226.80
  6. Step 6: Final answer
    x = 584,612.51

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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.