Home / 530,275.76-731,794.04-288,571.44

Finding the Fourth Proportional to 530,275.76, 731,794.04 and 288,571.44

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Solution

The fourth proportional to 530,275.76, 731,794.04 and 288,571.44 is: 398,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,275.76 : 731,794.04 = 288,571.44 : x
  2. Step 2: Convert to fraction form
    530,275.76/731,794.04 = 288,571.44/x
  3. Step 3: Cross multiply
    530,275.76x = 731,794.04 × 288,571.44
  4. Step 4: Simplify right side
    530,275.76x = 211,174,859,906.22
  5. Step 5: Solve for x
    x = 211,174,859,906.22/530,275.76
  6. Step 6: Final answer
    x = 398,235.93

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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.