Home / 817,505.16-1,226,258.19-390,940.22

Finding the Fourth Proportional to 817,505.16, 1,226,258.19 and 390,940.22

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Solution

The fourth proportional to 817,505.16, 1,226,258.19 and 390,940.22 is: 586,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,505.16 : 1,226,258.19 = 390,940.22 : x
  2. Step 2: Convert to fraction form
    817,505.16/1,226,258.19 = 390,940.22/x
  3. Step 3: Cross multiply
    817,505.16x = 1,226,258.19 × 390,940.22
  4. Step 4: Simplify right side
    817,505.16x = 479,393,649,641.05
  5. Step 5: Solve for x
    x = 479,393,649,641.05/817,505.16
  6. Step 6: Final answer
    x = 586,410.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.