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Finding the Fourth Proportional to 680,496.37, 939,088.37 and 374,603.51

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Solution

The fourth proportional to 680,496.37, 939,088.37 and 374,603.51 is: 516,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,496.37 : 939,088.37 = 374,603.51 : x
  2. Step 2: Convert to fraction form
    680,496.37/939,088.37 = 374,603.51/x
  3. Step 3: Cross multiply
    680,496.37x = 939,088.37 × 374,603.51
  4. Step 4: Simplify right side
    680,496.37x = 351,785,797,729.16
  5. Step 5: Solve for x
    x = 351,785,797,729.16/680,496.37
  6. Step 6: Final answer
    x = 516,954.71

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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.