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Finding the Fourth Proportional to 530,068.06, 731,328.78 and 300,607.30

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Solution

The fourth proportional to 530,068.06, 731,328.78 and 300,607.30 is: 414,744.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,068.06 : 731,328.78 = 300,607.30 : x
  2. Step 2: Convert to fraction form
    530,068.06/731,328.78 = 300,607.30/x
  3. Step 3: Cross multiply
    530,068.06x = 731,328.78 × 300,607.30
  4. Step 4: Simplify right side
    530,068.06x = 219,842,769,968.09
  5. Step 5: Solve for x
    x = 219,842,769,968.09/530,068.06
  6. Step 6: Final answer
    x = 414,744.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.