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Finding the Fourth Proportional to 615,472.37, 849,114.37 and 385,628.93

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Solution

The fourth proportional to 615,472.37, 849,114.37 and 385,628.93 is: 532,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,472.37 : 849,114.37 = 385,628.93 : x
  2. Step 2: Convert to fraction form
    615,472.37/849,114.37 = 385,628.93/x
  3. Step 3: Cross multiply
    615,472.37x = 849,114.37 × 385,628.93
  4. Step 4: Simplify right side
    615,472.37x = 327,443,061,898.65
  5. Step 5: Solve for x
    x = 327,443,061,898.65/615,472.37
  6. Step 6: Final answer
    x = 532,019.11

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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.