Home / 851,515.11-1,175,065.70-469,541.79

Finding the Fourth Proportional to 851,515.11, 1,175,065.70 and 469,541.79

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Solution

The fourth proportional to 851,515.11, 1,175,065.70 and 469,541.79 is: 647,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,515.11 : 1,175,065.70 = 469,541.79 : x
  2. Step 2: Convert to fraction form
    851,515.11/1,175,065.70 = 469,541.79/x
  3. Step 3: Cross multiply
    851,515.11x = 1,175,065.70 × 469,541.79
  4. Step 4: Simplify right side
    851,515.11x = 551,742,452,145.60
  5. Step 5: Solve for x
    x = 551,742,452,145.60/851,515.11
  6. Step 6: Final answer
    x = 647,953.80

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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.