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Finding the Fourth Proportional to 478,695.83, 660,603.36 and 263,835.89

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Solution

The fourth proportional to 478,695.83, 660,603.36 and 263,835.89 is: 364,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,695.83 : 660,603.36 = 263,835.89 : x
  2. Step 2: Convert to fraction form
    478,695.83/660,603.36 = 263,835.89/x
  3. Step 3: Cross multiply
    478,695.83x = 660,603.36 × 263,835.89
  4. Step 4: Simplify right side
    478,695.83x = 174,290,872,119.57
  5. Step 5: Solve for x
    x = 174,290,872,119.57/478,695.83
  6. Step 6: Final answer
    x = 364,095.24

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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.