Home / 672,047.40-1,008,071.10-630,575.40

Finding the Fourth Proportional to 672,047.40, 1,008,071.10 and 630,575.40

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Solution

The fourth proportional to 672,047.40, 1,008,071.10 and 630,575.40 is: 945,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,047.40 : 1,008,071.10 = 630,575.40 : x
  2. Step 2: Convert to fraction form
    672,047.40/1,008,071.10 = 630,575.40/x
  3. Step 3: Cross multiply
    672,047.40x = 1,008,071.10 × 630,575.40
  4. Step 4: Simplify right side
    672,047.40x = 635,664,837,110.94
  5. Step 5: Solve for x
    x = 635,664,837,110.94/672,047.40
  6. Step 6: Final answer
    x = 945,863.10

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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.