Home / 549,139.88-757,827.46-307,421.40

Finding the Fourth Proportional to 549,139.88, 757,827.46 and 307,421.40

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Solution

The fourth proportional to 549,139.88, 757,827.46 and 307,421.40 is: 424,249.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,139.88 : 757,827.46 = 307,421.40 : x
  2. Step 2: Convert to fraction form
    549,139.88/757,827.46 = 307,421.40/x
  3. Step 3: Cross multiply
    549,139.88x = 757,827.46 × 307,421.40
  4. Step 4: Simplify right side
    549,139.88x = 232,972,378,711.64
  5. Step 5: Solve for x
    x = 232,972,378,711.64/549,139.88
  6. Step 6: Final answer
    x = 424,249.61

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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.