Home / 903,774.54-1,355,424.21-429,516.30

Finding the Fourth Proportional to 903,774.54, 1,355,424.21 and 429,516.30

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Solution

The fourth proportional to 903,774.54, 1,355,424.21 and 429,516.30 is: 644,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,774.54 : 1,355,424.21 = 429,516.30 : x
  2. Step 2: Convert to fraction form
    903,774.54/1,355,424.21 = 429,516.30/x
  3. Step 3: Cross multiply
    903,774.54x = 1,355,424.21 × 429,516.30
  4. Step 4: Simplify right side
    903,774.54x = 582,176,791,609.62
  5. Step 5: Solve for x
    x = 582,176,791,609.62/903,774.54
  6. Step 6: Final answer
    x = 644,161.53

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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.