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Finding the Fourth Proportional to 521,646.90, 731,880.30 and 521,646.90

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Solution

The fourth proportional to 521,646.90, 731,880.30 and 521,646.90 is: 731,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,646.90 : 731,880.30 = 521,646.90 : x
  2. Step 2: Convert to fraction form
    521,646.90/731,880.30 = 521,646.90/x
  3. Step 3: Cross multiply
    521,646.90x = 731,880.30 × 521,646.90
  4. Step 4: Simplify right side
    521,646.90x = 381,783,089,666.07
  5. Step 5: Solve for x
    x = 381,783,089,666.07/521,646.90
  6. Step 6: Final answer
    x = 731,880.30

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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.