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Finding the Fourth Proportional to 530,002.50, 731,403.45 and 303,779.22

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Solution

The fourth proportional to 530,002.50, 731,403.45 and 303,779.22 is: 419,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,002.50 : 731,403.45 = 303,779.22 : x
  2. Step 2: Convert to fraction form
    530,002.50/731,403.45 = 303,779.22/x
  3. Step 3: Cross multiply
    530,002.50x = 731,403.45 × 303,779.22
  4. Step 4: Simplify right side
    530,002.50x = 222,185,169,546.31
  5. Step 5: Solve for x
    x = 222,185,169,546.31/530,002.50
  6. Step 6: Final answer
    x = 419,215.32

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1.5x scale

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.