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Finding the Fourth Proportional to 549,852.64, 758,760.72 and 323,454.40

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Solution

The fourth proportional to 549,852.64, 758,760.72 and 323,454.40 is: 446,345.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,852.64 : 758,760.72 = 323,454.40 : x
  2. Step 2: Convert to fraction form
    549,852.64/758,760.72 = 323,454.40/x
  3. Step 3: Cross multiply
    549,852.64x = 758,760.72 × 323,454.40
  4. Step 4: Simplify right side
    549,852.64x = 245,424,493,431.17
  5. Step 5: Solve for x
    x = 245,424,493,431.17/549,852.64
  6. Step 6: Final answer
    x = 446,345.94

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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.