Home / 529,723.96-731,033.40-288,022.76

Finding the Fourth Proportional to 529,723.96, 731,033.40 and 288,022.76

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Solution

The fourth proportional to 529,723.96, 731,033.40 and 288,022.76 is: 397,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,723.96 : 731,033.40 = 288,022.76 : x
  2. Step 2: Convert to fraction form
    529,723.96/731,033.40 = 288,022.76/x
  3. Step 3: Cross multiply
    529,723.96x = 731,033.40 × 288,022.76
  4. Step 4: Simplify right side
    529,723.96x = 210,554,257,520.18
  5. Step 5: Solve for x
    x = 210,554,257,520.18/529,723.96
  6. Step 6: Final answer
    x = 397,479.20

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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.