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Finding the Fourth Proportional to 451,702.02, 677,774.16 and 319,432.26

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Solution

The fourth proportional to 451,702.02, 677,774.16 and 319,432.26 is: 479,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,702.02 : 677,774.16 = 319,432.26 : x
  2. Step 2: Convert to fraction form
    451,702.02/677,774.16 = 319,432.26/x
  3. Step 3: Cross multiply
    451,702.02x = 677,774.16 × 319,432.26
  4. Step 4: Simplify right side
    451,702.02x = 216,502,931,698.40
  5. Step 5: Solve for x
    x = 216,502,931,698.40/451,702.02
  6. Step 6: Final answer
    x = 479,304.77

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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.