Home / 529,840.12-731,182.80-288,125.32

Finding the Fourth Proportional to 529,840.12, 731,182.80 and 288,125.32

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Solution

The fourth proportional to 529,840.12, 731,182.80 and 288,125.32 is: 397,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,840.12 : 731,182.80 = 288,125.32 : x
  2. Step 2: Convert to fraction form
    529,840.12/731,182.80 = 288,125.32/x
  3. Step 3: Cross multiply
    529,840.12x = 731,182.80 × 288,125.32
  4. Step 4: Simplify right side
    529,840.12x = 210,672,278,228.50
  5. Step 5: Solve for x
    x = 210,672,278,228.50/529,840.12
  6. Step 6: Final answer
    x = 397,614.81

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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.