Home / 783,342.65-1,081,184.88-477,355.81

Finding the Fourth Proportional to 783,342.65, 1,081,184.88 and 477,355.81

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Solution

The fourth proportional to 783,342.65, 1,081,184.88 and 477,355.81 is: 658,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,342.65 : 1,081,184.88 = 477,355.81 : x
  2. Step 2: Convert to fraction form
    783,342.65/1,081,184.88 = 477,355.81/x
  3. Step 3: Cross multiply
    783,342.65x = 1,081,184.88 × 477,355.81
  4. Step 4: Simplify right side
    783,342.65x = 516,109,882,057.83
  5. Step 5: Solve for x
    x = 516,109,882,057.83/783,342.65
  6. Step 6: Final answer
    x = 658,855.84

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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.