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Finding the Fourth Proportional to 530,260.50, 731,638.26 and 300,762.93

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Solution

The fourth proportional to 530,260.50, 731,638.26 and 300,762.93 is: 414,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,260.50 : 731,638.26 = 300,762.93 : x
  2. Step 2: Convert to fraction form
    530,260.50/731,638.26 = 300,762.93/x
  3. Step 3: Cross multiply
    530,260.50x = 731,638.26 × 300,762.93
  4. Step 4: Simplify right side
    530,260.50x = 220,049,666,777.70
  5. Step 5: Solve for x
    x = 220,049,666,777.70/530,260.50
  6. Step 6: Final answer
    x = 414,984.08

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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.