Home / 530,015.40-731,551.16-300,706.92

Finding the Fourth Proportional to 530,015.40, 731,551.16 and 300,706.92

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Solution

The fourth proportional to 530,015.40, 731,551.16 and 300,706.92 is: 415,049.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,015.40 : 731,551.16 = 300,706.92 : x
  2. Step 2: Convert to fraction form
    530,015.40/731,551.16 = 300,706.92/x
  3. Step 3: Cross multiply
    530,015.40x = 731,551.16 × 300,706.92
  4. Step 4: Simplify right side
    530,015.40x = 219,982,496,146.03
  5. Step 5: Solve for x
    x = 219,982,496,146.03/530,015.40
  6. Step 6: Final answer
    x = 415,049.25

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1.5x scale

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.