Home / 786,672.41-1,085,214.92-496,643.40

Finding the Fourth Proportional to 786,672.41, 1,085,214.92 and 496,643.40

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Solution

The fourth proportional to 786,672.41, 1,085,214.92 and 496,643.40 is: 685,119.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,672.41 : 1,085,214.92 = 496,643.40 : x
  2. Step 2: Convert to fraction form
    786,672.41/1,085,214.92 = 496,643.40/x
  3. Step 3: Cross multiply
    786,672.41x = 1,085,214.92 × 496,643.40
  4. Step 4: Simplify right side
    786,672.41x = 538,964,825,116.31
  5. Step 5: Solve for x
    x = 538,964,825,116.31/786,672.41
  6. Step 6: Final answer
    x = 685,119.78

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1.5x scale

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.