Home / 3,139,913.40-4,709,870.10-1,145,110.20

Finding the Fourth Proportional to 3,139,913.40, 4,709,870.10 and 1,145,110.20

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Solution

The fourth proportional to 3,139,913.40, 4,709,870.10 and 1,145,110.20 is: 1,717,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,913.40 : 4,709,870.10 = 1,145,110.20 : x
  2. Step 2: Convert to fraction form
    3,139,913.40/4,709,870.10 = 1,145,110.20/x
  3. Step 3: Cross multiply
    3,139,913.40x = 4,709,870.10 × 1,145,110.20
  4. Step 4: Simplify right side
    3,139,913.40x = 5,393,320,292,185.02
  5. Step 5: Solve for x
    x = 5,393,320,292,185.02/3,139,913.40
  6. Step 6: Final answer
    x = 1,717,665.30

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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.