Home / 1,020,158.23-1,530,424.16-420,792.42

Finding the Fourth Proportional to 1,020,158.23, 1,530,424.16 and 420,792.42

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Solution

The fourth proportional to 1,020,158.23, 1,530,424.16 and 420,792.42 is: 631,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,158.23 : 1,530,424.16 = 420,792.42 : x
  2. Step 2: Convert to fraction form
    1,020,158.23/1,530,424.16 = 420,792.42/x
  3. Step 3: Cross multiply
    1,020,158.23x = 1,530,424.16 × 420,792.42
  4. Step 4: Simplify right side
    1,020,158.23x = 643,990,885,912.87
  5. Step 5: Solve for x
    x = 643,990,885,912.87/1,020,158.23
  6. Step 6: Final answer
    x = 631,265.69

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1.5x scale

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.