Home / 829,074.80-1,144,123.16-471,378.80

Finding the Fourth Proportional to 829,074.80, 1,144,123.16 and 471,378.80

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Solution

The fourth proportional to 829,074.80, 1,144,123.16 and 471,378.80 is: 650,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,074.80 : 1,144,123.16 = 471,378.80 : x
  2. Step 2: Convert to fraction form
    829,074.80/1,144,123.16 = 471,378.80/x
  3. Step 3: Cross multiply
    829,074.80x = 1,144,123.16 × 471,378.80
  4. Step 4: Simplify right side
    829,074.80x = 539,315,402,213.01
  5. Step 5: Solve for x
    x = 539,315,402,213.01/829,074.80
  6. Step 6: Final answer
    x = 650,502.71

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Double scale
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Similar ratio
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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.