Home / 1,320,497.46-1,980,002.61-421,727.94

Finding the Fourth Proportional to 1,320,497.46, 1,980,002.61 and 421,727.94

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Solution

The fourth proportional to 1,320,497.46, 1,980,002.61 and 421,727.94 is: 632,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,497.46 : 1,980,002.61 = 421,727.94 : x
  2. Step 2: Convert to fraction form
    1,320,497.46/1,980,002.61 = 421,727.94/x
  3. Step 3: Cross multiply
    1,320,497.46x = 1,980,002.61 × 421,727.94
  4. Step 4: Simplify right side
    1,320,497.46x = 835,022,421,909.92
  5. Step 5: Solve for x
    x = 835,022,421,909.92/1,320,497.46
  6. Step 6: Final answer
    x = 632,354.43

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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.