Home / 478,835.15-660,772.01-261,038.64

Finding the Fourth Proportional to 478,835.15, 660,772.01 and 261,038.64

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Solution

The fourth proportional to 478,835.15, 660,772.01 and 261,038.64 is: 360,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,835.15 : 660,772.01 = 261,038.64 : x
  2. Step 2: Convert to fraction form
    478,835.15/660,772.01 = 261,038.64/x
  3. Step 3: Cross multiply
    478,835.15x = 660,772.01 × 261,038.64
  4. Step 4: Simplify right side
    478,835.15x = 172,487,027,493.06
  5. Step 5: Solve for x
    x = 172,487,027,493.06/478,835.15
  6. Step 6: Final answer
    x = 360,222.15

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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.