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Finding the Fourth Proportional to 452,307.04, 681,711.71 and 389,880.61

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Solution

The fourth proportional to 452,307.04, 681,711.71 and 389,880.61 is: 587,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,307.04 : 681,711.71 = 389,880.61 : x
  2. Step 2: Convert to fraction form
    452,307.04/681,711.71 = 389,880.61/x
  3. Step 3: Cross multiply
    452,307.04x = 681,711.71 × 389,880.61
  4. Step 4: Simplify right side
    452,307.04x = 265,786,175,878.34
  5. Step 5: Solve for x
    x = 265,786,175,878.34/452,307.04
  6. Step 6: Final answer
    x = 587,623.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.