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Finding the Fourth Proportional to 550,652.10, 759,911.59 and 308,952.15

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Solution

The fourth proportional to 550,652.10, 759,911.59 and 308,952.15 is: 426,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,652.10 : 759,911.59 = 308,952.15 : x
  2. Step 2: Convert to fraction form
    550,652.10/759,911.59 = 308,952.15/x
  3. Step 3: Cross multiply
    550,652.10x = 759,911.59 × 308,952.15
  4. Step 4: Simplify right side
    550,652.10x = 234,776,315,740.86
  5. Step 5: Solve for x
    x = 234,776,315,740.86/550,652.10
  6. Step 6: Final answer
    x = 426,360.52

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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.