Home / 708,588,857.70-1,062,883,286.55-487,615,689.90

Finding the Fourth Proportional to 708,588,857.70, 1,062,883,286.55 and 487,615,689.90

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Solution

The fourth proportional to 708,588,857.70, 1,062,883,286.55 and 487,615,689.90 is: 731,423,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,588,857.70 : 1,062,883,286.55 = 487,615,689.90 : x
  2. Step 2: Convert to fraction form
    708,588,857.70/1,062,883,286.55 = 487,615,689.90/x
  3. Step 3: Cross multiply
    708,588,857.70x = 1,062,883,286.55 × 487,615,689.90
  4. Step 4: Simplify right side
    708,588,857.70x = 518,278,567,054,257,600
  5. Step 5: Solve for x
    x = 518,278,567,054,257,600/708,588,857.70
  6. Step 6: Final answer
    x = 731,423,534.85

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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.