Home / 1,402,143.36-2,103,569.16-391,264.56

Finding the Fourth Proportional to 1,402,143.36, 2,103,569.16 and 391,264.56

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Solution

The fourth proportional to 1,402,143.36, 2,103,569.16 and 391,264.56 is: 586,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,143.36 : 2,103,569.16 = 391,264.56 : x
  2. Step 2: Convert to fraction form
    1,402,143.36/2,103,569.16 = 391,264.56/x
  3. Step 3: Cross multiply
    1,402,143.36x = 2,103,569.16 × 391,264.56
  4. Step 4: Simplify right side
    1,402,143.36x = 823,052,061,816.97
  5. Step 5: Solve for x
    x = 823,052,061,816.97/1,402,143.36
  6. Step 6: Final answer
    x = 586,995.66

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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.