Home / 630,943.10-946,414.65-379,000.70

Finding the Fourth Proportional to 630,943.10, 946,414.65 and 379,000.70

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Solution

The fourth proportional to 630,943.10, 946,414.65 and 379,000.70 is: 568,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,943.10 : 946,414.65 = 379,000.70 : x
  2. Step 2: Convert to fraction form
    630,943.10/946,414.65 = 379,000.70/x
  3. Step 3: Cross multiply
    630,943.10x = 946,414.65 × 379,000.70
  4. Step 4: Simplify right side
    630,943.10x = 358,691,814,840.26
  5. Step 5: Solve for x
    x = 358,691,814,840.26/630,943.10
  6. Step 6: Final answer
    x = 568,501.05

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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.