Home / 828,705.90-1,240,749.27-423,025.43

Finding the Fourth Proportional to 828,705.90, 1,240,749.27 and 423,025.43

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Solution

The fourth proportional to 828,705.90, 1,240,749.27 and 423,025.43 is: 633,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,705.90 : 1,240,749.27 = 423,025.43 : x
  2. Step 2: Convert to fraction form
    828,705.90/1,240,749.27 = 423,025.43/x
  3. Step 3: Cross multiply
    828,705.90x = 1,240,749.27 × 423,025.43
  4. Step 4: Simplify right side
    828,705.90x = 524,868,496,565.81
  5. Step 5: Solve for x
    x = 524,868,496,565.81/828,705.90
  6. Step 6: Final answer
    x = 633,359.19

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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.