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Finding the Fourth Proportional to 478,588.08, 660,451.74 and 260,795.28

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Solution

The fourth proportional to 478,588.08, 660,451.74 and 260,795.28 is: 359,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,588.08 : 660,451.74 = 260,795.28 : x
  2. Step 2: Convert to fraction form
    478,588.08/660,451.74 = 260,795.28/x
  3. Step 3: Cross multiply
    478,588.08x = 660,451.74 × 260,795.28
  4. Step 4: Simplify right side
    478,588.08x = 172,242,696,459.79
  5. Step 5: Solve for x
    x = 172,242,696,459.79/478,588.08
  6. Step 6: Final answer
    x = 359,897.59

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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.