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Finding the Fourth Proportional to 549,597.09, 758,430.77 and 307,889.85

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Solution

The fourth proportional to 549,597.09, 758,430.77 and 307,889.85 is: 424,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,597.09 : 758,430.77 = 307,889.85 : x
  2. Step 2: Convert to fraction form
    549,597.09/758,430.77 = 307,889.85/x
  3. Step 3: Cross multiply
    549,597.09x = 758,430.77 × 307,889.85
  4. Step 4: Simplify right side
    549,597.09x = 233,513,134,471.24
  5. Step 5: Solve for x
    x = 233,513,134,471.24/549,597.09
  6. Step 6: Final answer
    x = 424,880.59

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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.