Home / 831,637.62-1,147,654.35-469,064.48

Finding the Fourth Proportional to 831,637.62, 1,147,654.35 and 469,064.48

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Solution

The fourth proportional to 831,637.62, 1,147,654.35 and 469,064.48 is: 647,305.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,637.62 : 1,147,654.35 = 469,064.48 : x
  2. Step 2: Convert to fraction form
    831,637.62/1,147,654.35 = 469,064.48/x
  3. Step 3: Cross multiply
    831,637.62x = 1,147,654.35 × 469,064.48
  4. Step 4: Simplify right side
    831,637.62x = 538,323,885,164.22
  5. Step 5: Solve for x
    x = 538,323,885,164.22/831,637.62
  6. Step 6: Final answer
    x = 647,305.84

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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.