Home / 916,902.30-1,375,353.45-384,246.30

Finding the Fourth Proportional to 916,902.30, 1,375,353.45 and 384,246.30

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Solution

The fourth proportional to 916,902.30, 1,375,353.45 and 384,246.30 is: 576,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,902.30 : 1,375,353.45 = 384,246.30 : x
  2. Step 2: Convert to fraction form
    916,902.30/1,375,353.45 = 384,246.30/x
  3. Step 3: Cross multiply
    916,902.30x = 1,375,353.45 × 384,246.30
  4. Step 4: Simplify right side
    916,902.30x = 528,474,474,354.74
  5. Step 5: Solve for x
    x = 528,474,474,354.74/916,902.30
  6. Step 6: Final answer
    x = 576,369.45

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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.