Home / 1,301,784.38-1,952,299.40-390,930.10

Finding the Fourth Proportional to 1,301,784.38, 1,952,299.40 and 390,930.10

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Solution

The fourth proportional to 1,301,784.38, 1,952,299.40 and 390,930.10 is: 586,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,784.38 : 1,952,299.40 = 390,930.10 : x
  2. Step 2: Convert to fraction form
    1,301,784.38/1,952,299.40 = 390,930.10/x
  3. Step 3: Cross multiply
    1,301,784.38x = 1,952,299.40 × 390,930.10
  4. Step 4: Simplify right side
    1,301,784.38x = 763,212,592,836.54
  5. Step 5: Solve for x
    x = 763,212,592,836.54/1,301,784.38
  6. Step 6: Final answer
    x = 586,281.88

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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.