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Finding the Fourth Proportional to 520,051.15, 729,646.25 and 520,051.15

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Solution

The fourth proportional to 520,051.15, 729,646.25 and 520,051.15 is: 729,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,051.15 : 729,646.25 = 520,051.15 : x
  2. Step 2: Convert to fraction form
    520,051.15/729,646.25 = 520,051.15/x
  3. Step 3: Cross multiply
    520,051.15x = 729,646.25 × 520,051.15
  4. Step 4: Simplify right side
    520,051.15x = 379,453,371,405.69
  5. Step 5: Solve for x
    x = 379,453,371,405.69/520,051.15
  6. Step 6: Final answer
    x = 729,646.25

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.