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Finding the Fourth Proportional to 790,613.42, 1,090,601.04 and 500,135

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Solution

The fourth proportional to 790,613.42, 1,090,601.04 and 500,135 is: 689,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,613.42 : 1,090,601.04 = 500,135 : x
  2. Step 2: Convert to fraction form
    790,613.42/1,090,601.04 = 500,135/x
  3. Step 3: Cross multiply
    790,613.42x = 1,090,601.04 × 500,135
  4. Step 4: Simplify right side
    790,613.42x = 545,447,751,140.40
  5. Step 5: Solve for x
    x = 545,447,751,140.40/790,613.42
  6. Step 6: Final answer
    x = 689,904.49

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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.