Home / 530,383.40-731,947.05-288,674.74

Finding the Fourth Proportional to 530,383.40, 731,947.05 and 288,674.74

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Solution

The fourth proportional to 530,383.40, 731,947.05 and 288,674.74 is: 398,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,383.40 : 731,947.05 = 288,674.74 : x
  2. Step 2: Convert to fraction form
    530,383.40/731,947.05 = 288,674.74/x
  3. Step 3: Cross multiply
    530,383.40x = 731,947.05 × 288,674.74
  4. Step 4: Simplify right side
    530,383.40x = 211,294,624,352.52
  5. Step 5: Solve for x
    x = 211,294,624,352.52/530,383.40
  6. Step 6: Final answer
    x = 398,380.92

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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.