Home / 1,430,178.24-2,144,145.75-671,629.29

Finding the Fourth Proportional to 1,430,178.24, 2,144,145.75 and 671,629.29

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Solution

The fourth proportional to 1,430,178.24, 2,144,145.75 and 671,629.29 is: 1,006,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,178.24 : 2,144,145.75 = 671,629.29 : x
  2. Step 2: Convert to fraction form
    1,430,178.24/2,144,145.75 = 671,629.29/x
  3. Step 3: Cross multiply
    1,430,178.24x = 2,144,145.75 × 671,629.29
  4. Step 4: Simplify right side
    1,430,178.24x = 1,440,071,087,729.02
  5. Step 5: Solve for x
    x = 1,440,071,087,729.02/1,430,178.24
  6. Step 6: Final answer
    x = 1,006,917.21

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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.