Home / 529,943.37-731,314.60-288,220.74

Finding the Fourth Proportional to 529,943.37, 731,314.60 and 288,220.74

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Solution

The fourth proportional to 529,943.37, 731,314.60 and 288,220.74 is: 397,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,943.37 : 731,314.60 = 288,220.74 : x
  2. Step 2: Convert to fraction form
    529,943.37/731,314.60 = 288,220.74/x
  3. Step 3: Cross multiply
    529,943.37x = 731,314.60 × 288,220.74
  4. Step 4: Simplify right side
    529,943.37x = 210,780,035,184.80
  5. Step 5: Solve for x
    x = 210,780,035,184.80/529,943.37
  6. Step 6: Final answer
    x = 397,740.68

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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.