Home / 926,759.07-1,389,870.20-278,309.12

Finding the Fourth Proportional to 926,759.07, 1,389,870.20 and 278,309.12

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Solution

The fourth proportional to 926,759.07, 1,389,870.20 and 278,309.12 is: 417,383.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,759.07 : 1,389,870.20 = 278,309.12 : x
  2. Step 2: Convert to fraction form
    926,759.07/1,389,870.20 = 278,309.12/x
  3. Step 3: Cross multiply
    926,759.07x = 1,389,870.20 × 278,309.12
  4. Step 4: Simplify right side
    926,759.07x = 386,813,556,446.67
  5. Step 5: Solve for x
    x = 386,813,556,446.67/926,759.07
  6. Step 6: Final answer
    x = 417,383.08

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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.