Home / 670,542.40-1,005,991.80-291,300.40

Finding the Fourth Proportional to 670,542.40, 1,005,991.80 and 291,300.40

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Solution

The fourth proportional to 670,542.40, 1,005,991.80 and 291,300.40 is: 437,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,542.40 : 1,005,991.80 = 291,300.40 : x
  2. Step 2: Convert to fraction form
    670,542.40/1,005,991.80 = 291,300.40/x
  3. Step 3: Cross multiply
    670,542.40x = 1,005,991.80 × 291,300.40
  4. Step 4: Simplify right side
    670,542.40x = 293,045,813,736.72
  5. Step 5: Solve for x
    x = 293,045,813,736.72/670,542.40
  6. Step 6: Final answer
    x = 437,028.01

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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.