Home / 803,623.76-1,205,829-323,831.60

Finding the Fourth Proportional to 803,623.76, 1,205,829 and 323,831.60

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Solution

The fourth proportional to 803,623.76, 1,205,829 and 323,831.60 is: 485,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,623.76 : 1,205,829 = 323,831.60 : x
  2. Step 2: Convert to fraction form
    803,623.76/1,205,829 = 323,831.60/x
  3. Step 3: Cross multiply
    803,623.76x = 1,205,829 × 323,831.60
  4. Step 4: Simplify right side
    803,623.76x = 390,485,534,396.40
  5. Step 5: Solve for x
    x = 390,485,534,396.40/803,623.76
  6. Step 6: Final answer
    x = 485,905.91

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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.