Home / 1,155,228.30-1,594,207.87-638,972.94

Finding the Fourth Proportional to 1,155,228.30, 1,594,207.87 and 638,972.94

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Solution

The fourth proportional to 1,155,228.30, 1,594,207.87 and 638,972.94 is: 881,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,228.30 : 1,594,207.87 = 638,972.94 : x
  2. Step 2: Convert to fraction form
    1,155,228.30/1,594,207.87 = 638,972.94/x
  3. Step 3: Cross multiply
    1,155,228.30x = 1,594,207.87 × 638,972.94
  4. Step 4: Simplify right side
    1,155,228.30x = 1,018,655,689,665.04
  5. Step 5: Solve for x
    x = 1,018,655,689,665.04/1,155,228.30
  6. Step 6: Final answer
    x = 881,778.68

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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.