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Finding the Fourth Proportional to 514,637.60, 772,647.60 and 328,474.40

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Solution

The fourth proportional to 514,637.60, 772,647.60 and 328,474.40 is: 493,152.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,637.60 : 772,647.60 = 328,474.40 : x
  2. Step 2: Convert to fraction form
    514,637.60/772,647.60 = 328,474.40/x
  3. Step 3: Cross multiply
    514,637.60x = 772,647.60 × 328,474.40
  4. Step 4: Simplify right side
    514,637.60x = 253,794,956,821.44
  5. Step 5: Solve for x
    x = 253,794,956,821.44/514,637.60
  6. Step 6: Final answer
    x = 493,152.77

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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.