Home / 670,241.40-1,005,540.30-290,999.40

Finding the Fourth Proportional to 670,241.40, 1,005,540.30 and 290,999.40

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Solution

The fourth proportional to 670,241.40, 1,005,540.30 and 290,999.40 is: 436,576.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,241.40 : 1,005,540.30 = 290,999.40 : x
  2. Step 2: Convert to fraction form
    670,241.40/1,005,540.30 = 290,999.40/x
  3. Step 3: Cross multiply
    670,241.40x = 1,005,540.30 × 290,999.40
  4. Step 4: Simplify right side
    670,241.40x = 292,611,623,975.82
  5. Step 5: Solve for x
    x = 292,611,623,975.82/670,241.40
  6. Step 6: Final answer
    x = 436,576.47

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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.