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Finding the Fourth Proportional to 579,967.72, 870,587.90 and 460,790.68

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Solution

The fourth proportional to 579,967.72, 870,587.90 and 460,790.68 is: 691,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,967.72 : 870,587.90 = 460,790.68 : x
  2. Step 2: Convert to fraction form
    579,967.72/870,587.90 = 460,790.68/x
  3. Step 3: Cross multiply
    579,967.72x = 870,587.90 × 460,790.68
  4. Step 4: Simplify right side
    579,967.72x = 401,158,790,440.77
  5. Step 5: Solve for x
    x = 401,158,790,440.77/579,967.72
  6. Step 6: Final answer
    x = 691,691.58

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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.