Home / 1,292,028.40-1,937,894.84-345,472.93

Finding the Fourth Proportional to 1,292,028.40, 1,937,894.84 and 345,472.93

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Solution

The fourth proportional to 1,292,028.40, 1,937,894.84 and 345,472.93 is: 518,169.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,028.40 : 1,937,894.84 = 345,472.93 : x
  2. Step 2: Convert to fraction form
    1,292,028.40/1,937,894.84 = 345,472.93/x
  3. Step 3: Cross multiply
    1,292,028.40x = 1,937,894.84 × 345,472.93
  4. Step 4: Simplify right side
    1,292,028.40x = 669,490,206,679.32
  5. Step 5: Solve for x
    x = 669,490,206,679.32/1,292,028.40
  6. Step 6: Final answer
    x = 518,169.88

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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.