Home / 880,728.64-1,215,480.48-498,823.36

Finding the Fourth Proportional to 880,728.64, 1,215,480.48 and 498,823.36

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Solution

The fourth proportional to 880,728.64, 1,215,480.48 and 498,823.36 is: 688,418.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,728.64 : 1,215,480.48 = 498,823.36 : x
  2. Step 2: Convert to fraction form
    880,728.64/1,215,480.48 = 498,823.36/x
  3. Step 3: Cross multiply
    880,728.64x = 1,215,480.48 × 498,823.36
  4. Step 4: Simplify right side
    880,728.64x = 606,310,057,048.01
  5. Step 5: Solve for x
    x = 606,310,057,048.01/880,728.64
  6. Step 6: Final answer
    x = 688,418.69

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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.