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Finding the Fourth Proportional to 549,182.80, 822,899.40 and 407,465.20

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Solution

The fourth proportional to 549,182.80, 822,899.40 and 407,465.20 is: 610,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,182.80 : 822,899.40 = 407,465.20 : x
  2. Step 2: Convert to fraction form
    549,182.80/822,899.40 = 407,465.20/x
  3. Step 3: Cross multiply
    549,182.80x = 822,899.40 × 407,465.20
  4. Step 4: Simplify right side
    549,182.80x = 335,302,868,600.88
  5. Step 5: Solve for x
    x = 335,302,868,600.88/549,182.80
  6. Step 6: Final answer
    x = 610,548.74

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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.