Home / 874,777.82-1,207,205.56-487,582.52

Finding the Fourth Proportional to 874,777.82, 1,207,205.56 and 487,582.52

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Solution

The fourth proportional to 874,777.82, 1,207,205.56 and 487,582.52 is: 672,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,777.82 : 1,207,205.56 = 487,582.52 : x
  2. Step 2: Convert to fraction form
    874,777.82/1,207,205.56 = 487,582.52/x
  3. Step 3: Cross multiply
    874,777.82x = 1,207,205.56 × 487,582.52
  4. Step 4: Simplify right side
    874,777.82x = 588,612,329,102.81
  5. Step 5: Solve for x
    x = 588,612,329,102.81/874,777.82
  6. Step 6: Final answer
    x = 672,870.66

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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.