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Finding the Fourth Proportional to 536,787.90, 740,768.81 and 307,348.72

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Solution

The fourth proportional to 536,787.90, 740,768.81 and 307,348.72 is: 424,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,787.90 : 740,768.81 = 307,348.72 : x
  2. Step 2: Convert to fraction form
    536,787.90/740,768.81 = 307,348.72/x
  3. Step 3: Cross multiply
    536,787.90x = 740,768.81 × 307,348.72
  4. Step 4: Simplify right side
    536,787.90x = 227,674,344,032.68
  5. Step 5: Solve for x
    x = 227,674,344,032.68/536,787.90
  6. Step 6: Final answer
    x = 424,142.10

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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.