Home / 880,765.20-1,215,415.35-498,794.76

Finding the Fourth Proportional to 880,765.20, 1,215,415.35 and 498,794.76

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Solution

The fourth proportional to 880,765.20, 1,215,415.35 and 498,794.76 is: 688,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,765.20 : 1,215,415.35 = 498,794.76 : x
  2. Step 2: Convert to fraction form
    880,765.20/1,215,415.35 = 498,794.76/x
  3. Step 3: Cross multiply
    880,765.20x = 1,215,415.35 × 498,794.76
  4. Step 4: Simplify right side
    880,765.20x = 606,242,807,803.57
  5. Step 5: Solve for x
    x = 606,242,807,803.57/880,765.20
  6. Step 6: Final answer
    x = 688,313.76

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Double scale
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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.