Home / 763,367.40-1,145,051.10-448,439.40

Finding the Fourth Proportional to 763,367.40, 1,145,051.10 and 448,439.40

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Solution

The fourth proportional to 763,367.40, 1,145,051.10 and 448,439.40 is: 672,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,367.40 : 1,145,051.10 = 448,439.40 : x
  2. Step 2: Convert to fraction form
    763,367.40/1,145,051.10 = 448,439.40/x
  3. Step 3: Cross multiply
    763,367.40x = 1,145,051.10 × 448,439.40
  4. Step 4: Simplify right side
    763,367.40x = 513,486,028,253.34
  5. Step 5: Solve for x
    x = 513,486,028,253.34/763,367.40
  6. Step 6: Final answer
    x = 672,659.10

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Half scale
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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.