Home / 672,429.60-1,008,644.40-625,190.40

Finding the Fourth Proportional to 672,429.60, 1,008,644.40 and 625,190.40

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Solution

The fourth proportional to 672,429.60, 1,008,644.40 and 625,190.40 is: 937,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,429.60 : 1,008,644.40 = 625,190.40 : x
  2. Step 2: Convert to fraction form
    672,429.60/1,008,644.40 = 625,190.40/x
  3. Step 3: Cross multiply
    672,429.60x = 1,008,644.40 × 625,190.40
  4. Step 4: Simplify right side
    672,429.60x = 630,594,795,893.76
  5. Step 5: Solve for x
    x = 630,594,795,893.76/672,429.60
  6. Step 6: Final answer
    x = 937,785.60

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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.