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Finding the Fourth Proportional to 549,347.70, 758,033.46 and 307,611.30

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Solution

The fourth proportional to 549,347.70, 758,033.46 and 307,611.30 is: 424,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,347.70 : 758,033.46 = 307,611.30 : x
  2. Step 2: Convert to fraction form
    549,347.70/758,033.46 = 307,611.30/x
  3. Step 3: Cross multiply
    549,347.70x = 758,033.46 × 307,611.30
  4. Step 4: Simplify right side
    549,347.70x = 233,179,658,074.10
  5. Step 5: Solve for x
    x = 233,179,658,074.10/549,347.70
  6. Step 6: Final answer
    x = 424,466.43

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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.