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Finding the Fourth Proportional to 549,327.64, 758,148.88 and 396,859.08

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Solution

The fourth proportional to 549,327.64, 758,148.88 and 396,859.08 is: 547,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,327.64 : 758,148.88 = 396,859.08 : x
  2. Step 2: Convert to fraction form
    549,327.64/758,148.88 = 396,859.08/x
  3. Step 3: Cross multiply
    549,327.64x = 758,148.88 × 396,859.08
  4. Step 4: Simplify right side
    549,327.64x = 300,878,267,019.83
  5. Step 5: Solve for x
    x = 300,878,267,019.83/549,327.64
  6. Step 6: Final answer
    x = 547,720.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.