Home / 1,122,388.40-1,683,831.38-323,607.64

Finding the Fourth Proportional to 1,122,388.40, 1,683,831.38 and 323,607.64

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Solution

The fourth proportional to 1,122,388.40, 1,683,831.38 and 323,607.64 is: 485,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,388.40 : 1,683,831.38 = 323,607.64 : x
  2. Step 2: Convert to fraction form
    1,122,388.40/1,683,831.38 = 323,607.64/x
  3. Step 3: Cross multiply
    1,122,388.40x = 1,683,831.38 × 323,607.64
  4. Step 4: Simplify right side
    1,122,388.40x = 544,900,699,039.74
  5. Step 5: Solve for x
    x = 544,900,699,039.74/1,122,388.40
  6. Step 6: Final answer
    x = 485,483.19

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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.