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Finding the Fourth Proportional to 528,280.60, 793,004.10 and 328,826.20

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Solution

The fourth proportional to 528,280.60, 793,004.10 and 328,826.20 is: 493,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,280.60 : 793,004.10 = 328,826.20 : x
  2. Step 2: Convert to fraction form
    528,280.60/793,004.10 = 328,826.20/x
  3. Step 3: Cross multiply
    528,280.60x = 793,004.10 × 328,826.20
  4. Step 4: Simplify right side
    528,280.60x = 260,760,524,787.42
  5. Step 5: Solve for x
    x = 260,760,524,787.42/528,280.60
  6. Step 6: Final answer
    x = 493,602.31

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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.