Home / 761,476.60-1,141,206.90-405,724.60

Finding the Fourth Proportional to 761,476.60, 1,141,206.90 and 405,724.60

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Solution

The fourth proportional to 761,476.60, 1,141,206.90 and 405,724.60 is: 608,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,476.60 : 1,141,206.90 = 405,724.60 : x
  2. Step 2: Convert to fraction form
    761,476.60/1,141,206.90 = 405,724.60/x
  3. Step 3: Cross multiply
    761,476.60x = 1,141,206.90 × 405,724.60
  4. Step 4: Simplify right side
    761,476.60x = 463,015,713,019.74
  5. Step 5: Solve for x
    x = 463,015,713,019.74/761,476.60
  6. Step 6: Final answer
    x = 608,049.82

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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.