Home / 549,109.05-757,764.65-307,393.61

Finding the Fourth Proportional to 549,109.05, 757,764.65 and 307,393.61

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Solution

The fourth proportional to 549,109.05, 757,764.65 and 307,393.61 is: 424,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,109.05 : 757,764.65 = 307,393.61 : x
  2. Step 2: Convert to fraction form
    549,109.05/757,764.65 = 307,393.61/x
  3. Step 3: Cross multiply
    549,109.05x = 757,764.65 × 307,393.61
  4. Step 4: Simplify right side
    549,109.05x = 232,932,009,386.08
  5. Step 5: Solve for x
    x = 232,932,009,386.08/549,109.05
  6. Step 6: Final answer
    x = 424,199.91

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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.