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Finding the Fourth Proportional to 520,904.87, 780,824.51 and 352,443.00

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Solution

The fourth proportional to 520,904.87, 780,824.51 and 352,443.00 is: 528,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,904.87 : 780,824.51 = 352,443.00 : x
  2. Step 2: Convert to fraction form
    520,904.87/780,824.51 = 352,443.00/x
  3. Step 3: Cross multiply
    520,904.87x = 780,824.51 × 352,443.00
  4. Step 4: Simplify right side
    520,904.87x = 275,196,130,873.33
  5. Step 5: Solve for x
    x = 275,196,130,873.33/520,904.87
  6. Step 6: Final answer
    x = 528,304.00

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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.