Home / 530,186.58-731,635.52-288,470.07

Finding the Fourth Proportional to 530,186.58, 731,635.52 and 288,470.07

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Solution

The fourth proportional to 530,186.58, 731,635.52 and 288,470.07 is: 398,076.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,186.58 : 731,635.52 = 288,470.07 : x
  2. Step 2: Convert to fraction form
    530,186.58/731,635.52 = 288,470.07/x
  3. Step 3: Cross multiply
    530,186.58x = 731,635.52 × 288,470.07
  4. Step 4: Simplify right side
    530,186.58x = 211,054,948,226.54
  5. Step 5: Solve for x
    x = 211,054,948,226.54/530,186.58
  6. Step 6: Final answer
    x = 398,076.75

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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.