Home / 939,030.40-1,408,545.60-274,182.40

Finding the Fourth Proportional to 939,030.40, 1,408,545.60 and 274,182.40

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Solution

The fourth proportional to 939,030.40, 1,408,545.60 and 274,182.40 is: 411,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,030.40 : 1,408,545.60 = 274,182.40 : x
  2. Step 2: Convert to fraction form
    939,030.40/1,408,545.60 = 274,182.40/x
  3. Step 3: Cross multiply
    939,030.40x = 1,408,545.60 × 274,182.40
  4. Step 4: Simplify right side
    939,030.40x = 386,198,413,117.44
  5. Step 5: Solve for x
    x = 386,198,413,117.44/939,030.40
  6. Step 6: Final answer
    x = 411,273.60

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Double scale
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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.