Home / 939,006.40-1,408,509.60-274,158.40

Finding the Fourth Proportional to 939,006.40, 1,408,509.60 and 274,158.40

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Solution

The fourth proportional to 939,006.40, 1,408,509.60 and 274,158.40 is: 411,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,006.40 : 1,408,509.60 = 274,158.40 : x
  2. Step 2: Convert to fraction form
    939,006.40/1,408,509.60 = 274,158.40/x
  3. Step 3: Cross multiply
    939,006.40x = 1,408,509.60 × 274,158.40
  4. Step 4: Simplify right side
    939,006.40x = 386,154,738,320.64
  5. Step 5: Solve for x
    x = 386,154,738,320.64/939,006.40
  6. Step 6: Final answer
    x = 411,237.60

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Similar ratio
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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.