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Finding the Fourth Proportional to 625,775.04, 863,516.16 and 353,829.60

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Solution

The fourth proportional to 625,775.04, 863,516.16 and 353,829.60 is: 488,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,775.04 : 863,516.16 = 353,829.60 : x
  2. Step 2: Convert to fraction form
    625,775.04/863,516.16 = 353,829.60/x
  3. Step 3: Cross multiply
    625,775.04x = 863,516.16 × 353,829.60
  4. Step 4: Simplify right side
    625,775.04x = 305,537,577,486.34
  5. Step 5: Solve for x
    x = 305,537,577,486.34/625,775.04
  6. Step 6: Final answer
    x = 488,254.66

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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.