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Finding the Fourth Proportional to 875,841.90, 1,314,108.45 and 343,272.30

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Solution

The fourth proportional to 875,841.90, 1,314,108.45 and 343,272.30 is: 515,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,841.90 : 1,314,108.45 = 343,272.30 : x
  2. Step 2: Convert to fraction form
    875,841.90/1,314,108.45 = 343,272.30/x
  3. Step 3: Cross multiply
    875,841.90x = 1,314,108.45 × 343,272.30
  4. Step 4: Simplify right side
    875,841.90x = 451,097,030,080.94
  5. Step 5: Solve for x
    x = 451,097,030,080.94/875,841.90
  6. Step 6: Final answer
    x = 515,043.90

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1.5x scale

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.