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Finding the Fourth Proportional to 680,463.89, 939,032.73 and 374,533.71

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Solution

The fourth proportional to 680,463.89, 939,032.73 and 374,533.71 is: 516,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,463.89 : 939,032.73 = 374,533.71 : x
  2. Step 2: Convert to fraction form
    680,463.89/939,032.73 = 374,533.71/x
  3. Step 3: Cross multiply
    680,463.89x = 939,032.73 × 374,533.71
  4. Step 4: Simplify right side
    680,463.89x = 351,699,408,656.96
  5. Step 5: Solve for x
    x = 351,699,408,656.96/680,463.89
  6. Step 6: Final answer
    x = 516,852.42

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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.