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Finding the Fourth Proportional to 1,490,592, 2,235,888.72 and 479,713.92

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Solution

The fourth proportional to 1,490,592, 2,235,888.72 and 479,713.92 is: 719,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,592 : 2,235,888.72 = 479,713.92 : x
  2. Step 2: Convert to fraction form
    1,490,592/2,235,888.72 = 479,713.92/x
  3. Step 3: Cross multiply
    1,490,592x = 2,235,888.72 × 479,713.92
  4. Step 4: Simplify right side
    1,490,592x = 1,072,586,942,554.98
  5. Step 5: Solve for x
    x = 1,072,586,942,554.98/1,490,592
  6. Step 6: Final answer
    x = 719,571.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.