Home / 740,514.15-1,110,333.83-386,220.15

Finding the Fourth Proportional to 740,514.15, 1,110,333.83 and 386,220.15

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Solution

The fourth proportional to 740,514.15, 1,110,333.83 and 386,220.15 is: 579,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,514.15 : 1,110,333.83 = 386,220.15 : x
  2. Step 2: Convert to fraction form
    740,514.15/1,110,333.83 = 386,220.15/x
  3. Step 3: Cross multiply
    740,514.15x = 1,110,333.83 × 386,220.15
  4. Step 4: Simplify right side
    740,514.15x = 428,833,296,441.57
  5. Step 5: Solve for x
    x = 428,833,296,441.57/740,514.15
  6. Step 6: Final answer
    x = 579,102.10

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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.