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Finding the Fourth Proportional to 392,603.06, 587,742.05 and 242,360.26

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Solution

The fourth proportional to 392,603.06, 587,742.05 and 242,360.26 is: 362,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,603.06 : 587,742.05 = 242,360.26 : x
  2. Step 2: Convert to fraction form
    392,603.06/587,742.05 = 242,360.26/x
  3. Step 3: Cross multiply
    392,603.06x = 587,742.05 × 242,360.26
  4. Step 4: Simplify right side
    392,603.06x = 142,445,316,050.93
  5. Step 5: Solve for x
    x = 142,445,316,050.93/392,603.06
  6. Step 6: Final answer
    x = 362,822.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.