Home / 1,332,108.56-1,998,409.25-421,520.29

Finding the Fourth Proportional to 1,332,108.56, 1,998,409.25 and 421,520.29

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Solution

The fourth proportional to 1,332,108.56, 1,998,409.25 and 421,520.29 is: 632,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,108.56 : 1,998,409.25 = 421,520.29 : x
  2. Step 2: Convert to fraction form
    1,332,108.56/1,998,409.25 = 421,520.29/x
  3. Step 3: Cross multiply
    1,332,108.56x = 1,998,409.25 × 421,520.29
  4. Step 4: Simplify right side
    1,332,108.56x = 842,370,042,656.46
  5. Step 5: Solve for x
    x = 842,370,042,656.46/1,332,108.56
  6. Step 6: Final answer
    x = 632,358.40

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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.