Home / 1,020,159.53-1,530,426.10-420,793.72

Finding the Fourth Proportional to 1,020,159.53, 1,530,426.10 and 420,793.72

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Solution

The fourth proportional to 1,020,159.53, 1,530,426.10 and 420,793.72 is: 631,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,159.53 : 1,530,426.10 = 420,793.72 : x
  2. Step 2: Convert to fraction form
    1,020,159.53/1,530,426.10 = 420,793.72/x
  3. Step 3: Cross multiply
    1,020,159.53x = 1,530,426.10 × 420,793.72
  4. Step 4: Simplify right side
    1,020,159.53x = 643,993,687,715.03
  5. Step 5: Solve for x
    x = 643,993,687,715.03/1,020,159.53
  6. Step 6: Final answer
    x = 631,267.63

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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.