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Finding the Fourth Proportional to 521,014.32, 776,839.44 and 476,530.08

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Solution

The fourth proportional to 521,014.32, 776,839.44 and 476,530.08 is: 710,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,014.32 : 776,839.44 = 476,530.08 : x
  2. Step 2: Convert to fraction form
    521,014.32/776,839.44 = 476,530.08/x
  3. Step 3: Cross multiply
    521,014.32x = 776,839.44 × 476,530.08
  4. Step 4: Simplify right side
    521,014.32x = 370,187,360,490.36
  5. Step 5: Solve for x
    x = 370,187,360,490.36/521,014.32
  6. Step 6: Final answer
    x = 710,512.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.