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Finding the Fourth Proportional to 549,846.48, 756,961.56 and 493,159.44

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Solution

The fourth proportional to 549,846.48, 756,961.56 and 493,159.44 is: 678,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,846.48 : 756,961.56 = 493,159.44 : x
  2. Step 2: Convert to fraction form
    549,846.48/756,961.56 = 493,159.44/x
  3. Step 3: Cross multiply
    549,846.48x = 756,961.56 × 493,159.44
  4. Step 4: Simplify right side
    549,846.48x = 373,302,739,031.13
  5. Step 5: Solve for x
    x = 373,302,739,031.13/549,846.48
  6. Step 6: Final answer
    x = 678,921.76

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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.