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Finding the Fourth Proportional to 549,308.81, 758,110.86 and 307,544.67

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Solution

The fourth proportional to 549,308.81, 758,110.86 and 307,544.67 is: 424,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,308.81 : 758,110.86 = 307,544.67 : x
  2. Step 2: Convert to fraction form
    549,308.81/758,110.86 = 307,544.67/x
  3. Step 3: Cross multiply
    549,308.81x = 758,110.86 × 307,544.67
  4. Step 4: Simplify right side
    549,308.81x = 233,152,954,262.12
  5. Step 5: Solve for x
    x = 233,152,954,262.12/549,308.81
  6. Step 6: Final answer
    x = 424,447.87

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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.