Home / 743,587.18-1,026,067-421,228.24

Finding the Fourth Proportional to 743,587.18, 1,026,067 and 421,228.24

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Solution

The fourth proportional to 743,587.18, 1,026,067 and 421,228.24 is: 581,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,587.18 : 1,026,067 = 421,228.24 : x
  2. Step 2: Convert to fraction form
    743,587.18/1,026,067 = 421,228.24/x
  3. Step 3: Cross multiply
    743,587.18x = 1,026,067 × 421,228.24
  4. Step 4: Simplify right side
    743,587.18x = 432,208,396,532.08
  5. Step 5: Solve for x
    x = 432,208,396,532.08/743,587.18
  6. Step 6: Final answer
    x = 581,247.78

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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.