Home / 851,810.90-1,175,478.44-469,829.48

Finding the Fourth Proportional to 851,810.90, 1,175,478.44 and 469,829.48

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Solution

The fourth proportional to 851,810.90, 1,175,478.44 and 469,829.48 is: 648,353.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,810.90 : 1,175,478.44 = 469,829.48 : x
  2. Step 2: Convert to fraction form
    851,810.90/1,175,478.44 = 469,829.48/x
  3. Step 3: Cross multiply
    851,810.90x = 1,175,478.44 × 469,829.48
  4. Step 4: Simplify right side
    851,810.90x = 552,274,415,989.87
  5. Step 5: Solve for x
    x = 552,274,415,989.87/851,810.90
  6. Step 6: Final answer
    x = 648,353.31

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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.