Home / 530,265.08-731,638.22-312,482.66

Finding the Fourth Proportional to 530,265.08, 731,638.22 and 312,482.66

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Solution

The fourth proportional to 530,265.08, 731,638.22 and 312,482.66 is: 431,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,265.08 : 731,638.22 = 312,482.66 : x
  2. Step 2: Convert to fraction form
    530,265.08/731,638.22 = 312,482.66/x
  3. Step 3: Cross multiply
    530,265.08x = 731,638.22 × 312,482.66
  4. Step 4: Simplify right side
    530,265.08x = 228,624,251,922.66
  5. Step 5: Solve for x
    x = 228,624,251,922.66/530,265.08
  6. Step 6: Final answer
    x = 431,150.87

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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.