Home / 679,906.40-1,020,645.30-364,978.40

Finding the Fourth Proportional to 679,906.40, 1,020,645.30 and 364,978.40

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Solution

The fourth proportional to 679,906.40, 1,020,645.30 and 364,978.40 is: 547,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,906.40 : 1,020,645.30 = 364,978.40 : x
  2. Step 2: Convert to fraction form
    679,906.40/1,020,645.30 = 364,978.40/x
  3. Step 3: Cross multiply
    679,906.40x = 1,020,645.30 × 364,978.40
  4. Step 4: Simplify right side
    679,906.40x = 372,513,488,561.52
  5. Step 5: Solve for x
    x = 372,513,488,561.52/679,906.40
  6. Step 6: Final answer
    x = 547,889.37

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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.