Home / 743,387.12-1,114,685.40-294,089.84

Finding the Fourth Proportional to 743,387.12, 1,114,685.40 and 294,089.84

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Solution

The fourth proportional to 743,387.12, 1,114,685.40 and 294,089.84 is: 440,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,387.12 : 1,114,685.40 = 294,089.84 : x
  2. Step 2: Convert to fraction form
    743,387.12/1,114,685.40 = 294,089.84/x
  3. Step 3: Cross multiply
    743,387.12x = 1,114,685.40 × 294,089.84
  4. Step 4: Simplify right side
    743,387.12x = 327,817,650,936.34
  5. Step 5: Solve for x
    x = 327,817,650,936.34/743,387.12
  6. Step 6: Final answer
    x = 440,978.38

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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.