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Finding the Fourth Proportional to 679,221.84, 937,347.24 and 373,292.67

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Solution

The fourth proportional to 679,221.84, 937,347.24 and 373,292.67 is: 515,155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,221.84 : 937,347.24 = 373,292.67 : x
  2. Step 2: Convert to fraction form
    679,221.84/937,347.24 = 373,292.67/x
  3. Step 3: Cross multiply
    679,221.84x = 937,347.24 × 373,292.67
  4. Step 4: Simplify right side
    679,221.84x = 349,904,853,936.73
  5. Step 5: Solve for x
    x = 349,904,853,936.73/679,221.84
  6. Step 6: Final answer
    x = 515,155.48

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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.