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Finding the Fourth Proportional to 549,447.30, 823,186.80 and 470,715.30

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Solution

The fourth proportional to 549,447.30, 823,186.80 and 470,715.30 is: 705,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,447.30 : 823,186.80 = 470,715.30 : x
  2. Step 2: Convert to fraction form
    549,447.30/823,186.80 = 470,715.30/x
  3. Step 3: Cross multiply
    549,447.30x = 823,186.80 × 470,715.30
  4. Step 4: Simplify right side
    549,447.30x = 387,486,621,518.04
  5. Step 5: Solve for x
    x = 387,486,621,518.04/549,447.30
  6. Step 6: Final answer
    x = 705,229.82

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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.