Home / 851,257.55-1,174,788.32-469,283.63

Finding the Fourth Proportional to 851,257.55, 1,174,788.32 and 469,283.63

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Solution

The fourth proportional to 851,257.55, 1,174,788.32 and 469,283.63 is: 647,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,257.55 : 1,174,788.32 = 469,283.63 : x
  2. Step 2: Convert to fraction form
    851,257.55/1,174,788.32 = 469,283.63/x
  3. Step 3: Cross multiply
    851,257.55x = 1,174,788.32 × 469,283.63
  4. Step 4: Simplify right side
    851,257.55x = 551,308,927,291.20
  5. Step 5: Solve for x
    x = 551,308,927,291.20/851,257.55
  6. Step 6: Final answer
    x = 647,640.57

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Double scale
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1.5x scale

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.