Home / 821,479.58-1,232,683.29-442,392.29

Finding the Fourth Proportional to 821,479.58, 1,232,683.29 and 442,392.29

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Solution

The fourth proportional to 821,479.58, 1,232,683.29 and 442,392.29 is: 663,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,479.58 : 1,232,683.29 = 442,392.29 : x
  2. Step 2: Convert to fraction form
    821,479.58/1,232,683.29 = 442,392.29/x
  3. Step 3: Cross multiply
    821,479.58x = 1,232,683.29 × 442,392.29
  4. Step 4: Simplify right side
    821,479.58x = 545,329,577,344.42
  5. Step 5: Solve for x
    x = 545,329,577,344.42/821,479.58
  6. Step 6: Final answer
    x = 663,838.27

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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.