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Finding the Fourth Proportional to 530,004, 731,405.52 and 303,780.72

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Solution

The fourth proportional to 530,004, 731,405.52 and 303,780.72 is: 419,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,004 : 731,405.52 = 303,780.72 : x
  2. Step 2: Convert to fraction form
    530,004/731,405.52 = 303,780.72/x
  3. Step 3: Cross multiply
    530,004x = 731,405.52 × 303,780.72
  4. Step 4: Simplify right side
    530,004x = 222,186,895,477.57
  5. Step 5: Solve for x
    x = 222,186,895,477.57/530,004
  6. Step 6: Final answer
    x = 419,217.39

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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.