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Finding the Fourth Proportional to 549,620.16, 758,436.24 and 307,861.84

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Solution

The fourth proportional to 549,620.16, 758,436.24 and 307,861.84 is: 424,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,620.16 : 758,436.24 = 307,861.84 : x
  2. Step 2: Convert to fraction form
    549,620.16/758,436.24 = 307,861.84/x
  3. Step 3: Cross multiply
    549,620.16x = 758,436.24 × 307,861.84
  4. Step 4: Simplify right side
    549,620.16x = 233,493,576,369.08
  5. Step 5: Solve for x
    x = 233,493,576,369.08/549,620.16
  6. Step 6: Final answer
    x = 424,827.17

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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.