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Finding the Fourth Proportional to 607,941.84, 911,931.34 and 208,577

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Solution

The fourth proportional to 607,941.84, 911,931.34 and 208,577 is: 312,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,941.84 : 911,931.34 = 208,577 : x
  2. Step 2: Convert to fraction form
    607,941.84/911,931.34 = 208,577/x
  3. Step 3: Cross multiply
    607,941.84x = 911,931.34 × 208,577
  4. Step 4: Simplify right side
    607,941.84x = 190,207,903,103.18
  5. Step 5: Solve for x
    x = 190,207,903,103.18/607,941.84
  6. Step 6: Final answer
    x = 312,871.87

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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.