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Finding the Fourth Proportional to 514,778.63, 772,437.20 and 373,788.54

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Solution

The fourth proportional to 514,778.63, 772,437.20 and 373,788.54 is: 560,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,778.63 : 772,437.20 = 373,788.54 : x
  2. Step 2: Convert to fraction form
    514,778.63/772,437.20 = 373,788.54/x
  3. Step 3: Cross multiply
    514,778.63x = 772,437.20 × 373,788.54
  4. Step 4: Simplify right side
    514,778.63x = 288,728,171,360.75
  5. Step 5: Solve for x
    x = 288,728,171,360.75/514,778.63
  6. Step 6: Final answer
    x = 560,878.32

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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.