Home / 420,964.60-631,696.02-154,911.94

Finding the Fourth Proportional to 420,964.60, 631,696.02 and 154,911.94

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Solution

The fourth proportional to 420,964.60, 631,696.02 and 154,911.94 is: 232,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,964.60 : 631,696.02 = 154,911.94 : x
  2. Step 2: Convert to fraction form
    420,964.60/631,696.02 = 154,911.94/x
  3. Step 3: Cross multiply
    420,964.60x = 631,696.02 × 154,911.94
  4. Step 4: Simplify right side
    420,964.60x = 97,857,255,948.48
  5. Step 5: Solve for x
    x = 97,857,255,948.48/420,964.60
  6. Step 6: Final answer
    x = 232,459.58

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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.