Home / 530,338.44-731,853.01-288,615.81

Finding the Fourth Proportional to 530,338.44, 731,853.01 and 288,615.81

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Solution

The fourth proportional to 530,338.44, 731,853.01 and 288,615.81 is: 398,282.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,338.44 : 731,853.01 = 288,615.81 : x
  2. Step 2: Convert to fraction form
    530,338.44/731,853.01 = 288,615.81/x
  3. Step 3: Cross multiply
    530,338.44x = 731,853.01 × 288,615.81
  4. Step 4: Simplify right side
    530,338.44x = 211,224,346,647.17
  5. Step 5: Solve for x
    x = 211,224,346,647.17/530,338.44
  6. Step 6: Final answer
    x = 398,282.18

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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.