Home / 678,403.40-1,017,720.30-362,774.60

Finding the Fourth Proportional to 678,403.40, 1,017,720.30 and 362,774.60

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Solution

The fourth proportional to 678,403.40, 1,017,720.30 and 362,774.60 is: 544,223.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,403.40 : 1,017,720.30 = 362,774.60 : x
  2. Step 2: Convert to fraction form
    678,403.40/1,017,720.30 = 362,774.60/x
  3. Step 3: Cross multiply
    678,403.40x = 1,017,720.30 × 362,774.60
  4. Step 4: Simplify right side
    678,403.40x = 369,203,074,744.38
  5. Step 5: Solve for x
    x = 369,203,074,744.38/678,403.40
  6. Step 6: Final answer
    x = 544,223.50

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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.