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Finding the Fourth Proportional to 550,012.47, 759,052.28 and 308,295.10

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Solution

The fourth proportional to 550,012.47, 759,052.28 and 308,295.10 is: 425,466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,012.47 : 759,052.28 = 308,295.10 : x
  2. Step 2: Convert to fraction form
    550,012.47/759,052.28 = 308,295.10/x
  3. Step 3: Cross multiply
    550,012.47x = 759,052.28 × 308,295.10
  4. Step 4: Simplify right side
    550,012.47x = 234,012,098,567.83
  5. Step 5: Solve for x
    x = 234,012,098,567.83/550,012.47
  6. Step 6: Final answer
    x = 425,466.90

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1.5x scale

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.