Home / 738,847.70-1,108,271.55-423,044.90

Finding the Fourth Proportional to 738,847.70, 1,108,271.55 and 423,044.90

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Solution

The fourth proportional to 738,847.70, 1,108,271.55 and 423,044.90 is: 634,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,847.70 : 1,108,271.55 = 423,044.90 : x
  2. Step 2: Convert to fraction form
    738,847.70/1,108,271.55 = 423,044.90/x
  3. Step 3: Cross multiply
    738,847.70x = 1,108,271.55 × 423,044.90
  4. Step 4: Simplify right side
    738,847.70x = 468,848,627,042.60
  5. Step 5: Solve for x
    x = 468,848,627,042.60/738,847.70
  6. Step 6: Final answer
    x = 634,567.35

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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.