Home / 805,340.70-1,111,370.88-442,770.72

Finding the Fourth Proportional to 805,340.70, 1,111,370.88 and 442,770.72

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Solution

The fourth proportional to 805,340.70, 1,111,370.88 and 442,770.72 is: 611,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,340.70 : 1,111,370.88 = 442,770.72 : x
  2. Step 2: Convert to fraction form
    805,340.70/1,111,370.88 = 442,770.72/x
  3. Step 3: Cross multiply
    805,340.70x = 1,111,370.88 × 442,770.72
  4. Step 4: Simplify right side
    805,340.70x = 492,082,484,724.63
  5. Step 5: Solve for x
    x = 492,082,484,724.63/805,340.70
  6. Step 6: Final answer
    x = 611,023.99

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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.