Home / 3,128,689-4,317,590.82-1,697,905

Finding the Fourth Proportional to 3,128,689, 4,317,590.82 and 1,697,905

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Solution

The fourth proportional to 3,128,689, 4,317,590.82 and 1,697,905 is: 2,343,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,689 : 4,317,590.82 = 1,697,905 : x
  2. Step 2: Convert to fraction form
    3,128,689/4,317,590.82 = 1,697,905/x
  3. Step 3: Cross multiply
    3,128,689x = 4,317,590.82 × 1,697,905
  4. Step 4: Simplify right side
    3,128,689x = 7,330,859,041,232.10
  5. Step 5: Solve for x
    x = 7,330,859,041,232.10/3,128,689
  6. Step 6: Final answer
    x = 2,343,108.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.