Home / 708,590,269.80-1,062,885,404.70-397,378,420.20

Finding the Fourth Proportional to 708,590,269.80, 1,062,885,404.70 and 397,378,420.20

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Solution

The fourth proportional to 708,590,269.80, 1,062,885,404.70 and 397,378,420.20 is: 596,067,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,590,269.80 : 1,062,885,404.70 = 397,378,420.20 : x
  2. Step 2: Convert to fraction form
    708,590,269.80/1,062,885,404.70 = 397,378,420.20/x
  3. Step 3: Cross multiply
    708,590,269.80x = 1,062,885,404.70 × 397,378,420.20
  4. Step 4: Simplify right side
    708,590,269.80x = 422,367,722,973,323,648
  5. Step 5: Solve for x
    x = 422,367,722,973,323,648/708,590,269.80
  6. Step 6: Final answer
    x = 596,067,630.30

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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.