Home / 1,509,510.43-2,083,137.95-821,197.32

Finding the Fourth Proportional to 1,509,510.43, 2,083,137.95 and 821,197.32

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Solution

The fourth proportional to 1,509,510.43, 2,083,137.95 and 821,197.32 is: 1,133,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,510.43 : 2,083,137.95 = 821,197.32 : x
  2. Step 2: Convert to fraction form
    1,509,510.43/2,083,137.95 = 821,197.32/x
  3. Step 3: Cross multiply
    1,509,510.43x = 2,083,137.95 × 821,197.32
  4. Step 4: Simplify right side
    1,509,510.43x = 1,710,667,301,730.29
  5. Step 5: Solve for x
    x = 1,710,667,301,730.29/1,509,510.43
  6. Step 6: Final answer
    x = 1,133,259.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.