Home / 783,502.80-1,081,458.07-461,399.74

Finding the Fourth Proportional to 783,502.80, 1,081,458.07 and 461,399.74

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Solution

The fourth proportional to 783,502.80, 1,081,458.07 and 461,399.74 is: 636,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,502.80 : 1,081,458.07 = 461,399.74 : x
  2. Step 2: Convert to fraction form
    783,502.80/1,081,458.07 = 461,399.74/x
  3. Step 3: Cross multiply
    783,502.80x = 1,081,458.07 × 461,399.74
  4. Step 4: Simplify right side
    783,502.80x = 498,984,468,461.76
  5. Step 5: Solve for x
    x = 498,984,468,461.76/783,502.80
  6. Step 6: Final answer
    x = 636,863.67

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1.5x scale

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.