Home / 549,981.09-826,234.70-388,247.04

Finding the Fourth Proportional to 549,981.09, 826,234.70 and 388,247.04

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Solution

The fourth proportional to 549,981.09, 826,234.70 and 388,247.04 is: 583,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,981.09 : 826,234.70 = 388,247.04 : x
  2. Step 2: Convert to fraction form
    549,981.09/826,234.70 = 388,247.04/x
  3. Step 3: Cross multiply
    549,981.09x = 826,234.70 × 388,247.04
  4. Step 4: Simplify right side
    549,981.09x = 320,783,174,679.05
  5. Step 5: Solve for x
    x = 320,783,174,679.05/549,981.09
  6. Step 6: Final answer
    x = 583,262.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.