Home / 738,848.70-1,108,273.05-423,045.90

Finding the Fourth Proportional to 738,848.70, 1,108,273.05 and 423,045.90

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Solution

The fourth proportional to 738,848.70, 1,108,273.05 and 423,045.90 is: 634,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,848.70 : 1,108,273.05 = 423,045.90 : x
  2. Step 2: Convert to fraction form
    738,848.70/1,108,273.05 = 423,045.90/x
  3. Step 3: Cross multiply
    738,848.70x = 1,108,273.05 × 423,045.90
  4. Step 4: Simplify right side
    738,848.70x = 468,850,369,883.00
  5. Step 5: Solve for x
    x = 468,850,369,883.00/738,848.70
  6. Step 6: Final answer
    x = 634,568.85

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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.