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Finding the Fourth Proportional to 576,486.33, 865,254.30 and 306,840.90

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Solution

The fourth proportional to 576,486.33, 865,254.30 and 306,840.90 is: 460,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,486.33 : 865,254.30 = 306,840.90 : x
  2. Step 2: Convert to fraction form
    576,486.33/865,254.30 = 306,840.90/x
  3. Step 3: Cross multiply
    576,486.33x = 865,254.30 × 306,840.90
  4. Step 4: Simplify right side
    576,486.33x = 265,495,408,140.87
  5. Step 5: Solve for x
    x = 265,495,408,140.87/576,486.33
  6. Step 6: Final answer
    x = 460,540.68

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1.5x scale

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.