Home / 831,289.76-1,147,244.80-463,882.40

Finding the Fourth Proportional to 831,289.76, 1,147,244.80 and 463,882.40

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Solution

The fourth proportional to 831,289.76, 1,147,244.80 and 463,882.40 is: 640,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,289.76 : 1,147,244.80 = 463,882.40 : x
  2. Step 2: Convert to fraction form
    831,289.76/1,147,244.80 = 463,882.40/x
  3. Step 3: Cross multiply
    831,289.76x = 1,147,244.80 × 463,882.40
  4. Step 4: Simplify right side
    831,289.76x = 532,186,671,211.52
  5. Step 5: Solve for x
    x = 532,186,671,211.52/831,289.76
  6. Step 6: Final answer
    x = 640,193.95

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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.