Home / 1,509,690.12-2,083,392.88-821,370.20

Finding the Fourth Proportional to 1,509,690.12, 2,083,392.88 and 821,370.20

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Solution

The fourth proportional to 1,509,690.12, 2,083,392.88 and 821,370.20 is: 1,133,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,690.12 : 2,083,392.88 = 821,370.20 : x
  2. Step 2: Convert to fraction form
    1,509,690.12/2,083,392.88 = 821,370.20/x
  3. Step 3: Cross multiply
    1,509,690.12x = 2,083,392.88 × 821,370.20
  4. Step 4: Simplify right side
    1,509,690.12x = 1,711,236,826,524.18
  5. Step 5: Solve for x
    x = 1,711,236,826,524.18/1,509,690.12
  6. Step 6: Final answer
    x = 1,133,502.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.