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Finding the Fourth Proportional to 518,165.20, 776,300.52 and 375,657.55

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Solution

The fourth proportional to 518,165.20, 776,300.52 and 375,657.55 is: 562,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,165.20 : 776,300.52 = 375,657.55 : x
  2. Step 2: Convert to fraction form
    518,165.20/776,300.52 = 375,657.55/x
  3. Step 3: Cross multiply
    518,165.20x = 776,300.52 × 375,657.55
  4. Step 4: Simplify right side
    518,165.20x = 291,623,150,874.89
  5. Step 5: Solve for x
    x = 291,623,150,874.89/518,165.20
  6. Step 6: Final answer
    x = 562,799.57

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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.