Home / 671,707.20-1,007,560.80-665,486.40

Finding the Fourth Proportional to 671,707.20, 1,007,560.80 and 665,486.40

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Solution

The fourth proportional to 671,707.20, 1,007,560.80 and 665,486.40 is: 998,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,707.20 : 1,007,560.80 = 665,486.40 : x
  2. Step 2: Convert to fraction form
    671,707.20/1,007,560.80 = 665,486.40/x
  3. Step 3: Cross multiply
    671,707.20x = 1,007,560.80 × 665,486.40
  4. Step 4: Simplify right side
    671,707.20x = 670,518,009,573.12
  5. Step 5: Solve for x
    x = 670,518,009,573.12/671,707.20
  6. Step 6: Final answer
    x = 998,229.60

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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.