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Finding the Fourth Proportional to 602,690.54, 831,710.34 and 330,762.83

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Solution

The fourth proportional to 602,690.54, 831,710.34 and 330,762.83 is: 456,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,690.54 : 831,710.34 = 330,762.83 : x
  2. Step 2: Convert to fraction form
    602,690.54/831,710.34 = 330,762.83/x
  3. Step 3: Cross multiply
    602,690.54x = 831,710.34 × 330,762.83
  4. Step 4: Simplify right side
    602,690.54x = 275,098,865,798.66
  5. Step 5: Solve for x
    x = 275,098,865,798.66/602,690.54
  6. Step 6: Final answer
    x = 456,451.28

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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.