Home / 708,756.20-1,063,108.70-288,020.20

Finding the Fourth Proportional to 708,756.20, 1,063,108.70 and 288,020.20

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Solution

The fourth proportional to 708,756.20, 1,063,108.70 and 288,020.20 is: 432,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,756.20 : 1,063,108.70 = 288,020.20 : x
  2. Step 2: Convert to fraction form
    708,756.20/1,063,108.70 = 288,020.20/x
  3. Step 3: Cross multiply
    708,756.20x = 1,063,108.70 × 288,020.20
  4. Step 4: Simplify right side
    708,756.20x = 306,196,780,395.74
  5. Step 5: Solve for x
    x = 306,196,780,395.74/708,756.20
  6. Step 6: Final answer
    x = 432,019.90

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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.