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Finding the Fourth Proportional to 400,453.52, 549,682.18 and 354,116.24

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Solution

The fourth proportional to 400,453.52, 549,682.18 and 354,116.24 is: 486,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,453.52 : 549,682.18 = 354,116.24 : x
  2. Step 2: Convert to fraction form
    400,453.52/549,682.18 = 354,116.24/x
  3. Step 3: Cross multiply
    400,453.52x = 549,682.18 × 354,116.24
  4. Step 4: Simplify right side
    400,453.52x = 194,651,386,776.60
  5. Step 5: Solve for x
    x = 194,651,386,776.60/400,453.52
  6. Step 6: Final answer
    x = 486,077.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.