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Finding the Fourth Proportional to 549,378.64, 758,205.12 and 334,644.40

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Solution

The fourth proportional to 549,378.64, 758,205.12 and 334,644.40 is: 461,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,378.64 : 758,205.12 = 334,644.40 : x
  2. Step 2: Convert to fraction form
    549,378.64/758,205.12 = 334,644.40/x
  3. Step 3: Cross multiply
    549,378.64x = 758,205.12 × 334,644.40
  4. Step 4: Simplify right side
    549,378.64x = 253,729,097,459.33
  5. Step 5: Solve for x
    x = 253,729,097,459.33/549,378.64
  6. Step 6: Final answer
    x = 461,847.40

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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.