Home / 673,787.16-1,012,022.10-421,514.28

Finding the Fourth Proportional to 673,787.16, 1,012,022.10 and 421,514.28

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Solution

The fourth proportional to 673,787.16, 1,012,022.10 and 421,514.28 is: 633,110.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,787.16 : 1,012,022.10 = 421,514.28 : x
  2. Step 2: Convert to fraction form
    673,787.16/1,012,022.10 = 421,514.28/x
  3. Step 3: Cross multiply
    673,787.16x = 1,012,022.10 × 421,514.28
  4. Step 4: Simplify right side
    673,787.16x = 426,581,766,825.59
  5. Step 5: Solve for x
    x = 426,581,766,825.59/673,787.16
  6. Step 6: Final answer
    x = 633,110.56

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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.