Home / 428,982.72-592,024.20-247,702.32

Finding the Fourth Proportional to 428,982.72, 592,024.20 and 247,702.32

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Solution

The fourth proportional to 428,982.72, 592,024.20 and 247,702.32 is: 341,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,982.72 : 592,024.20 = 247,702.32 : x
  2. Step 2: Convert to fraction form
    428,982.72/592,024.20 = 247,702.32/x
  3. Step 3: Cross multiply
    428,982.72x = 592,024.20 × 247,702.32
  4. Step 4: Simplify right side
    428,982.72x = 146,645,767,836.14
  5. Step 5: Solve for x
    x = 146,645,767,836.14/428,982.72
  6. Step 6: Final answer
    x = 341,845.40

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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.