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Finding the Fourth Proportional to 535,624.12, 737,742.36 and 399,220.93

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Solution

The fourth proportional to 535,624.12, 737,742.36 and 399,220.93 is: 549,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,624.12 : 737,742.36 = 399,220.93 : x
  2. Step 2: Convert to fraction form
    535,624.12/737,742.36 = 399,220.93/x
  3. Step 3: Cross multiply
    535,624.12x = 737,742.36 × 399,220.93
  4. Step 4: Simplify right side
    535,624.12x = 294,522,191,059.60
  5. Step 5: Solve for x
    x = 294,522,191,059.60/535,624.12
  6. Step 6: Final answer
    x = 549,867.30

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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.