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Finding the Fourth Proportional to 602,510.12, 831,435.90 and 330,571.88

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Solution

The fourth proportional to 602,510.12, 831,435.90 and 330,571.88 is: 456,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,510.12 : 831,435.90 = 330,571.88 : x
  2. Step 2: Convert to fraction form
    602,510.12/831,435.90 = 330,571.88/x
  3. Step 3: Cross multiply
    602,510.12x = 831,435.90 × 330,571.88
  4. Step 4: Simplify right side
    602,510.12x = 274,849,328,562.49
  5. Step 5: Solve for x
    x = 274,849,328,562.49/602,510.12
  6. Step 6: Final answer
    x = 456,173.80

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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.