Home / 1,298,856.70-1,948,329.60-400,291.30

Finding the Fourth Proportional to 1,298,856.70, 1,948,329.60 and 400,291.30

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Solution

The fourth proportional to 1,298,856.70, 1,948,329.60 and 400,291.30 is: 600,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,856.70 : 1,948,329.60 = 400,291.30 : x
  2. Step 2: Convert to fraction form
    1,298,856.70/1,948,329.60 = 400,291.30/x
  3. Step 3: Cross multiply
    1,298,856.70x = 1,948,329.60 × 400,291.30
  4. Step 4: Simplify right side
    1,298,856.70x = 779,899,388,412.48
  5. Step 5: Solve for x
    x = 779,899,388,412.48/1,298,856.70
  6. Step 6: Final answer
    x = 600,450.68

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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.