Home / 825,065.32-1,138,659.78-462,483.40

Finding the Fourth Proportional to 825,065.32, 1,138,659.78 and 462,483.40

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Solution

The fourth proportional to 825,065.32, 1,138,659.78 and 462,483.40 is: 638,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,065.32 : 1,138,659.78 = 462,483.40 : x
  2. Step 2: Convert to fraction form
    825,065.32/1,138,659.78 = 462,483.40/x
  3. Step 3: Cross multiply
    825,065.32x = 1,138,659.78 × 462,483.40
  4. Step 4: Simplify right side
    825,065.32x = 526,611,246,497.65
  5. Step 5: Solve for x
    x = 526,611,246,497.65/825,065.32
  6. Step 6: Final answer
    x = 638,266.13

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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.