Home / 461,108.20-689,588.70-386,458.60

Finding the Fourth Proportional to 461,108.20, 689,588.70 and 386,458.60

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Solution

The fourth proportional to 461,108.20, 689,588.70 and 386,458.60 is: 577,950.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,108.20 : 689,588.70 = 386,458.60 : x
  2. Step 2: Convert to fraction form
    461,108.20/689,588.70 = 386,458.60/x
  3. Step 3: Cross multiply
    461,108.20x = 689,588.70 × 386,458.60
  4. Step 4: Simplify right side
    461,108.20x = 266,497,483,577.82
  5. Step 5: Solve for x
    x = 266,497,483,577.82/461,108.20
  6. Step 6: Final answer
    x = 577,950.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.