Home / 549,741.20-824,611.80-487,072.40

Finding the Fourth Proportional to 549,741.20, 824,611.80 and 487,072.40

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Solution

The fourth proportional to 549,741.20, 824,611.80 and 487,072.40 is: 730,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,741.20 : 824,611.80 = 487,072.40 : x
  2. Step 2: Convert to fraction form
    549,741.20/824,611.80 = 487,072.40/x
  3. Step 3: Cross multiply
    549,741.20x = 824,611.80 × 487,072.40
  4. Step 4: Simplify right side
    549,741.20x = 401,645,648,494.32
  5. Step 5: Solve for x
    x = 401,645,648,494.32/549,741.20
  6. Step 6: Final answer
    x = 730,608.60

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Similar ratio
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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.