Home / 706,926.80-1,060,390.20-408,328.40

Finding the Fourth Proportional to 706,926.80, 1,060,390.20 and 408,328.40

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Solution

The fourth proportional to 706,926.80, 1,060,390.20 and 408,328.40 is: 612,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,926.80 : 1,060,390.20 = 408,328.40 : x
  2. Step 2: Convert to fraction form
    706,926.80/1,060,390.20 = 408,328.40/x
  3. Step 3: Cross multiply
    706,926.80x = 1,060,390.20 × 408,328.40
  4. Step 4: Simplify right side
    706,926.80x = 432,987,433,741.68
  5. Step 5: Solve for x
    x = 432,987,433,741.68/706,926.80
  6. Step 6: Final answer
    x = 612,492.60

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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.