Home / 917,379.30-1,266,025.52-509,483.04

Finding the Fourth Proportional to 917,379.30, 1,266,025.52 and 509,483.04

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Solution

The fourth proportional to 917,379.30, 1,266,025.52 and 509,483.04 is: 703,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,379.30 : 1,266,025.52 = 509,483.04 : x
  2. Step 2: Convert to fraction form
    917,379.30/1,266,025.52 = 509,483.04/x
  3. Step 3: Cross multiply
    917,379.30x = 1,266,025.52 × 509,483.04
  4. Step 4: Simplify right side
    917,379.30x = 645,018,530,647.18
  5. Step 5: Solve for x
    x = 645,018,530,647.18/917,379.30
  6. Step 6: Final answer
    x = 703,109.97

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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.