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Finding the Fourth Proportional to 637,842.80, 956,764.20 and 401,452.40

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Solution

The fourth proportional to 637,842.80, 956,764.20 and 401,452.40 is: 602,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,842.80 : 956,764.20 = 401,452.40 : x
  2. Step 2: Convert to fraction form
    637,842.80/956,764.20 = 401,452.40/x
  3. Step 3: Cross multiply
    637,842.80x = 956,764.20 × 401,452.40
  4. Step 4: Simplify right side
    637,842.80x = 384,095,284,324.08
  5. Step 5: Solve for x
    x = 384,095,284,324.08/637,842.80
  6. Step 6: Final answer
    x = 602,178.60

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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.