Home / 508,946.40-763,711.20-193,629.60

Finding the Fourth Proportional to 508,946.40, 763,711.20 and 193,629.60

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Solution

The fourth proportional to 508,946.40, 763,711.20 and 193,629.60 is: 290,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,946.40 : 763,711.20 = 193,629.60 : x
  2. Step 2: Convert to fraction form
    508,946.40/763,711.20 = 193,629.60/x
  3. Step 3: Cross multiply
    508,946.40x = 763,711.20 × 193,629.60
  4. Step 4: Simplify right side
    508,946.40x = 147,877,094,171.52
  5. Step 5: Solve for x
    x = 147,877,094,171.52/508,946.40
  6. Step 6: Final answer
    x = 290,555.34

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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.