Home / 915,835.40-1,263,789.91-507,898.95

Finding the Fourth Proportional to 915,835.40, 1,263,789.91 and 507,898.95

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Solution

The fourth proportional to 915,835.40, 1,263,789.91 and 507,898.95 is: 700,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,835.40 : 1,263,789.91 = 507,898.95 : x
  2. Step 2: Convert to fraction form
    915,835.40/1,263,789.91 = 507,898.95/x
  3. Step 3: Cross multiply
    915,835.40x = 1,263,789.91 × 507,898.95
  4. Step 4: Simplify right side
    915,835.40x = 641,877,568,309.60
  5. Step 5: Solve for x
    x = 641,877,568,309.60/915,835.40
  6. Step 6: Final answer
    x = 700,865.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.