Home / 870,590.72-1,201,415.20-488,617.52

Finding the Fourth Proportional to 870,590.72, 1,201,415.20 and 488,617.52

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Solution

The fourth proportional to 870,590.72, 1,201,415.20 and 488,617.52 is: 674,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,590.72 : 1,201,415.20 = 488,617.52 : x
  2. Step 2: Convert to fraction form
    870,590.72/1,201,415.20 = 488,617.52/x
  3. Step 3: Cross multiply
    870,590.72x = 1,201,415.20 × 488,617.52
  4. Step 4: Simplify right side
    870,590.72x = 587,032,515,514.30
  5. Step 5: Solve for x
    x = 587,032,515,514.30/870,590.72
  6. Step 6: Final answer
    x = 674,292.18

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1.5x scale

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.