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Finding the Fourth Proportional to 549,647.07, 758,503.71 and 307,928.85

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Solution

The fourth proportional to 549,647.07, 758,503.71 and 307,928.85 is: 424,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,647.07 : 758,503.71 = 307,928.85 : x
  2. Step 2: Convert to fraction form
    549,647.07/758,503.71 = 307,928.85/x
  3. Step 3: Cross multiply
    549,647.07x = 758,503.71 × 307,928.85
  4. Step 4: Simplify right side
    549,647.07x = 233,565,175,141.03
  5. Step 5: Solve for x
    x = 233,565,175,141.03/549,647.07
  6. Step 6: Final answer
    x = 424,936.63

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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.