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Finding the Fourth Proportional to 602,478.65, 831,429.02 and 330,541.61

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Solution

The fourth proportional to 602,478.65, 831,429.02 and 330,541.61 is: 456,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,478.65 : 831,429.02 = 330,541.61 : x
  2. Step 2: Convert to fraction form
    602,478.65/831,429.02 = 330,541.61/x
  3. Step 3: Cross multiply
    602,478.65x = 831,429.02 × 330,541.61
  4. Step 4: Simplify right side
    602,478.65x = 274,821,886,871.52
  5. Step 5: Solve for x
    x = 274,821,886,871.52/602,478.65
  6. Step 6: Final answer
    x = 456,152.08

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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.