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Finding the Fourth Proportional to 530,439.81, 732,107.87 and 301,018.42

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Solution

The fourth proportional to 530,439.81, 732,107.87 and 301,018.42 is: 415,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,439.81 : 732,107.87 = 301,018.42 : x
  2. Step 2: Convert to fraction form
    530,439.81/732,107.87 = 301,018.42/x
  3. Step 3: Cross multiply
    530,439.81x = 732,107.87 × 301,018.42
  4. Step 4: Simplify right side
    530,439.81x = 220,377,954,835.83
  5. Step 5: Solve for x
    x = 220,377,954,835.83/530,439.81
  6. Step 6: Final answer
    x = 415,462.70

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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.