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Finding the Fourth Proportional to 530,903.92, 732,621.52 and 301,431.12

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Solution

The fourth proportional to 530,903.92, 732,621.52 and 301,431.12 is: 415,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,903.92 : 732,621.52 = 301,431.12 : x
  2. Step 2: Convert to fraction form
    530,903.92/732,621.52 = 301,431.12/x
  3. Step 3: Cross multiply
    530,903.92x = 732,621.52 × 301,431.12
  4. Step 4: Simplify right side
    530,903.92x = 220,834,925,309.70
  5. Step 5: Solve for x
    x = 220,834,925,309.70/530,903.92
  6. Step 6: Final answer
    x = 415,960.25

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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.