Home / 863,309.57-1,295,064.38-286,984.44

Finding the Fourth Proportional to 863,309.57, 1,295,064.38 and 286,984.44

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Solution

The fourth proportional to 863,309.57, 1,295,064.38 and 286,984.44 is: 430,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,309.57 : 1,295,064.38 = 286,984.44 : x
  2. Step 2: Convert to fraction form
    863,309.57/1,295,064.38 = 286,984.44/x
  3. Step 3: Cross multiply
    863,309.57x = 1,295,064.38 × 286,984.44
  4. Step 4: Simplify right side
    863,309.57x = 371,663,326,575.71
  5. Step 5: Solve for x
    x = 371,663,326,575.71/863,309.57
  6. Step 6: Final answer
    x = 430,509.91

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Double scale
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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.