Home / 530,131.23-731,526.48-315,229.77

Finding the Fourth Proportional to 530,131.23, 731,526.48 and 315,229.77

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Solution

The fourth proportional to 530,131.23, 731,526.48 and 315,229.77 is: 434,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,131.23 : 731,526.48 = 315,229.77 : x
  2. Step 2: Convert to fraction form
    530,131.23/731,526.48 = 315,229.77/x
  3. Step 3: Cross multiply
    530,131.23x = 731,526.48 × 315,229.77
  4. Step 4: Simplify right side
    530,131.23x = 230,598,924,039.31
  5. Step 5: Solve for x
    x = 230,598,924,039.31/530,131.23
  6. Step 6: Final answer
    x = 434,984.61

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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.