Home / 766,880.42-1,058,342.33-422,715.57

Finding the Fourth Proportional to 766,880.42, 1,058,342.33 and 422,715.57

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Solution

The fourth proportional to 766,880.42, 1,058,342.33 and 422,715.57 is: 583,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,880.42 : 1,058,342.33 = 422,715.57 : x
  2. Step 2: Convert to fraction form
    766,880.42/1,058,342.33 = 422,715.57/x
  3. Step 3: Cross multiply
    766,880.42x = 1,058,342.33 × 422,715.57
  4. Step 4: Simplify right side
    766,880.42x = 447,377,782,340.78
  5. Step 5: Solve for x
    x = 447,377,782,340.78/766,880.42
  6. Step 6: Final answer
    x = 583,373.59

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Double scale
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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.