Home / 802,456.81-1,107,503.69-496,631.59

Finding the Fourth Proportional to 802,456.81, 1,107,503.69 and 496,631.59

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Solution

The fourth proportional to 802,456.81, 1,107,503.69 and 496,631.59 is: 685,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,456.81 : 1,107,503.69 = 496,631.59 : x
  2. Step 2: Convert to fraction form
    802,456.81/1,107,503.69 = 496,631.59/x
  3. Step 3: Cross multiply
    802,456.81x = 1,107,503.69 × 496,631.59
  4. Step 4: Simplify right side
    802,456.81x = 550,021,313,243.65
  5. Step 5: Solve for x
    x = 550,021,313,243.65/802,456.81
  6. Step 6: Final answer
    x = 685,421.71

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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.