Home / 530,286.36-731,810.43-288,584.24

Finding the Fourth Proportional to 530,286.36, 731,810.43 and 288,584.24

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Solution

The fourth proportional to 530,286.36, 731,810.43 and 288,584.24 is: 398,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,286.36 : 731,810.43 = 288,584.24 : x
  2. Step 2: Convert to fraction form
    530,286.36/731,810.43 = 288,584.24/x
  3. Step 3: Cross multiply
    530,286.36x = 731,810.43 × 288,584.24
  4. Step 4: Simplify right side
    530,286.36x = 211,188,953,106.57
  5. Step 5: Solve for x
    x = 211,188,953,106.57/530,286.36
  6. Step 6: Final answer
    x = 398,254.55

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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.