Home / 880,769.70-1,215,421.57-498,799.26

Finding the Fourth Proportional to 880,769.70, 1,215,421.57 and 498,799.26

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Solution

The fourth proportional to 880,769.70, 1,215,421.57 and 498,799.26 is: 688,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,769.70 : 1,215,421.57 = 498,799.26 : x
  2. Step 2: Convert to fraction form
    880,769.70/1,215,421.57 = 498,799.26/x
  3. Step 3: Cross multiply
    880,769.70x = 1,215,421.57 × 498,799.26
  4. Step 4: Simplify right side
    880,769.70x = 606,251,379,704.04
  5. Step 5: Solve for x
    x = 606,251,379,704.04/880,769.70
  6. Step 6: Final answer
    x = 688,319.98

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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.