Home / 672,036.90-1,008,055.35-620,715.30

Finding the Fourth Proportional to 672,036.90, 1,008,055.35 and 620,715.30

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Solution

The fourth proportional to 672,036.90, 1,008,055.35 and 620,715.30 is: 931,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,036.90 : 1,008,055.35 = 620,715.30 : x
  2. Step 2: Convert to fraction form
    672,036.90/1,008,055.35 = 620,715.30/x
  3. Step 3: Cross multiply
    672,036.90x = 1,008,055.35 × 620,715.30
  4. Step 4: Simplify right side
    672,036.90x = 625,715,378,991.86
  5. Step 5: Solve for x
    x = 625,715,378,991.86/672,036.90
  6. Step 6: Final answer
    x = 931,072.95

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Double scale
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Similar ratio
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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.