Home / 530,450.55-732,041.07-288,721.44

Finding the Fourth Proportional to 530,450.55, 732,041.07 and 288,721.44

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Solution

The fourth proportional to 530,450.55, 732,041.07 and 288,721.44 is: 398,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,450.55 : 732,041.07 = 288,721.44 : x
  2. Step 2: Convert to fraction form
    530,450.55/732,041.07 = 288,721.44/x
  3. Step 3: Cross multiply
    530,450.55x = 732,041.07 × 288,721.44
  4. Step 4: Simplify right side
    530,450.55x = 211,355,951,869.54
  5. Step 5: Solve for x
    x = 211,355,951,869.54/530,450.55
  6. Step 6: Final answer
    x = 398,446.10

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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.