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Finding the Fourth Proportional to 867,843.82, 1,301,514.38 and 260,607.63

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Solution

The fourth proportional to 867,843.82, 1,301,514.38 and 260,607.63 is: 390,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,843.82 : 1,301,514.38 = 260,607.63 : x
  2. Step 2: Convert to fraction form
    867,843.82/1,301,514.38 = 260,607.63/x
  3. Step 3: Cross multiply
    867,843.82x = 1,301,514.38 × 260,607.63
  4. Step 4: Simplify right side
    867,843.82x = 339,184,575,216.62
  5. Step 5: Solve for x
    x = 339,184,575,216.62/867,843.82
  6. Step 6: Final answer
    x = 390,835.96

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Double scale
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1.5x scale

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.