Home / 530,037.52-731,448.20-300,639.44

Finding the Fourth Proportional to 530,037.52, 731,448.20 and 300,639.44

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Solution

The fourth proportional to 530,037.52, 731,448.20 and 300,639.44 is: 414,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,037.52 : 731,448.20 = 300,639.44 : x
  2. Step 2: Convert to fraction form
    530,037.52/731,448.20 = 300,639.44/x
  3. Step 3: Cross multiply
    530,037.52x = 731,448.20 × 300,639.44
  4. Step 4: Simplify right side
    530,037.52x = 219,902,177,562.43
  5. Step 5: Solve for x
    x = 219,902,177,562.43/530,037.52
  6. Step 6: Final answer
    x = 414,880.40

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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.