Home / 1,387,325.25-1,914,508.85-751,421.25

Finding the Fourth Proportional to 1,387,325.25, 1,914,508.85 and 751,421.25

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Solution

The fourth proportional to 1,387,325.25, 1,914,508.85 and 751,421.25 is: 1,036,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,325.25 : 1,914,508.85 = 751,421.25 : x
  2. Step 2: Convert to fraction form
    1,387,325.25/1,914,508.85 = 751,421.25/x
  3. Step 3: Cross multiply
    1,387,325.25x = 1,914,508.85 × 751,421.25
  4. Step 4: Simplify right side
    1,387,325.25x = 1,438,602,629,445.96
  5. Step 5: Solve for x
    x = 1,438,602,629,445.96/1,387,325.25
  6. Step 6: Final answer
    x = 1,036,961.33

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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.