Home / 979,005.75-1,351,113.44-571,238.97

Finding the Fourth Proportional to 979,005.75, 1,351,113.44 and 571,238.97

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Solution

The fourth proportional to 979,005.75, 1,351,113.44 and 571,238.97 is: 788,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,005.75 : 1,351,113.44 = 571,238.97 : x
  2. Step 2: Convert to fraction form
    979,005.75/1,351,113.44 = 571,238.97/x
  3. Step 3: Cross multiply
    979,005.75x = 1,351,113.44 × 571,238.97
  4. Step 4: Simplify right side
    979,005.75x = 771,808,646,962.56
  5. Step 5: Solve for x
    x = 771,808,646,962.56/979,005.75
  6. Step 6: Final answer
    x = 788,359.67

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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.