Home / 1,155,317.87-1,594,215.94-638,989.75

Finding the Fourth Proportional to 1,155,317.87, 1,594,215.94 and 638,989.75

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Solution

The fourth proportional to 1,155,317.87, 1,594,215.94 and 638,989.75 is: 881,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,317.87 : 1,594,215.94 = 638,989.75 : x
  2. Step 2: Convert to fraction form
    1,155,317.87/1,594,215.94 = 638,989.75/x
  3. Step 3: Cross multiply
    1,155,317.87x = 1,594,215.94 × 638,989.75
  4. Step 4: Simplify right side
    1,155,317.87x = 1,018,687,644,946.62
  5. Step 5: Solve for x
    x = 1,018,687,644,946.62/1,155,317.87
  6. Step 6: Final answer
    x = 881,737.98

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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.