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Finding the Fourth Proportional to 530,732.58, 732,411.75 and 289,016.16

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Solution

The fourth proportional to 530,732.58, 732,411.75 and 289,016.16 is: 398,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,732.58 : 732,411.75 = 289,016.16 : x
  2. Step 2: Convert to fraction form
    530,732.58/732,411.75 = 289,016.16/x
  3. Step 3: Cross multiply
    530,732.58x = 732,411.75 × 289,016.16
  4. Step 4: Simplify right side
    530,732.58x = 211,678,831,523.88
  5. Step 5: Solve for x
    x = 211,678,831,523.88/530,732.58
  6. Step 6: Final answer
    x = 398,842.73

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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.