Home / 678,421.40-1,017,747.30-362,792.60

Finding the Fourth Proportional to 678,421.40, 1,017,747.30 and 362,792.60

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Solution

The fourth proportional to 678,421.40, 1,017,747.30 and 362,792.60 is: 544,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,421.40 : 1,017,747.30 = 362,792.60 : x
  2. Step 2: Convert to fraction form
    678,421.40/1,017,747.30 = 362,792.60/x
  3. Step 3: Cross multiply
    678,421.40x = 1,017,747.30 × 362,792.60
  4. Step 4: Simplify right side
    678,421.40x = 369,231,189,109.98
  5. Step 5: Solve for x
    x = 369,231,189,109.98/678,421.40
  6. Step 6: Final answer
    x = 544,250.50

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Double scale
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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.