Home / 828,427.58-1,242,639.28-229,386.74

Finding the Fourth Proportional to 828,427.58, 1,242,639.28 and 229,386.74

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Solution

The fourth proportional to 828,427.58, 1,242,639.28 and 229,386.74 is: 344,079.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,427.58 : 1,242,639.28 = 229,386.74 : x
  2. Step 2: Convert to fraction form
    828,427.58/1,242,639.28 = 229,386.74/x
  3. Step 3: Cross multiply
    828,427.58x = 1,242,639.28 × 229,386.74
  4. Step 4: Simplify right side
    828,427.58x = 285,044,973,435.15
  5. Step 5: Solve for x
    x = 285,044,973,435.15/828,427.58
  6. Step 6: Final answer
    x = 344,079.53

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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.