Home / 1,243,646.21-1,865,260.64-345,179.23

Finding the Fourth Proportional to 1,243,646.21, 1,865,260.64 and 345,179.23

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Solution

The fourth proportional to 1,243,646.21, 1,865,260.64 and 345,179.23 is: 517,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,646.21 : 1,865,260.64 = 345,179.23 : x
  2. Step 2: Convert to fraction form
    1,243,646.21/1,865,260.64 = 345,179.23/x
  3. Step 3: Cross multiply
    1,243,646.21x = 1,865,260.64 × 345,179.23
  4. Step 4: Simplify right side
    1,243,646.21x = 643,849,227,664.30
  5. Step 5: Solve for x
    x = 643,849,227,664.30/1,243,646.21
  6. Step 6: Final answer
    x = 517,710.92

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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.