Home / 674,229.81-930,437.14-387,743.75

Finding the Fourth Proportional to 674,229.81, 930,437.14 and 387,743.75

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Solution

The fourth proportional to 674,229.81, 930,437.14 and 387,743.75 is: 535,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,229.81 : 930,437.14 = 387,743.75 : x
  2. Step 2: Convert to fraction form
    674,229.81/930,437.14 = 387,743.75/x
  3. Step 3: Cross multiply
    674,229.81x = 930,437.14 × 387,743.75
  4. Step 4: Simplify right side
    674,229.81x = 360,771,185,802.88
  5. Step 5: Solve for x
    x = 360,771,185,802.88/674,229.81
  6. Step 6: Final answer
    x = 535,086.38

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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.