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Finding the Fourth Proportional to 549,783.80, 824,675.70 and 409,815.80

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Solution

The fourth proportional to 549,783.80, 824,675.70 and 409,815.80 is: 614,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,783.80 : 824,675.70 = 409,815.80 : x
  2. Step 2: Convert to fraction form
    549,783.80/824,675.70 = 409,815.80/x
  3. Step 3: Cross multiply
    549,783.80x = 824,675.70 × 409,815.80
  4. Step 4: Simplify right side
    549,783.80x = 337,965,131,736.06
  5. Step 5: Solve for x
    x = 337,965,131,736.06/549,783.80
  6. Step 6: Final answer
    x = 614,723.70

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1.5x scale

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.