Home / 487,634.96-671,440.92-426,865.52

Finding the Fourth Proportional to 487,634.96, 671,440.92 and 426,865.52

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Solution

The fourth proportional to 487,634.96, 671,440.92 and 426,865.52 is: 587,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,634.96 : 671,440.92 = 426,865.52 : x
  2. Step 2: Convert to fraction form
    487,634.96/671,440.92 = 426,865.52/x
  3. Step 3: Cross multiply
    487,634.96x = 671,440.92 × 426,865.52
  4. Step 4: Simplify right side
    487,634.96x = 286,614,977,465.08
  5. Step 5: Solve for x
    x = 286,614,977,465.08/487,634.96
  6. Step 6: Final answer
    x = 587,765.44

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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.