Home / 478,837.61-660,800.99-263,985.36

Finding the Fourth Proportional to 478,837.61, 660,800.99 and 263,985.36

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Solution

The fourth proportional to 478,837.61, 660,800.99 and 263,985.36 is: 364,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,837.61 : 660,800.99 = 263,985.36 : x
  2. Step 2: Convert to fraction form
    478,837.61/660,800.99 = 263,985.36/x
  3. Step 3: Cross multiply
    478,837.61x = 660,800.99 × 263,985.36
  4. Step 4: Simplify right side
    478,837.61x = 174,441,787,151.01
  5. Step 5: Solve for x
    x = 174,441,787,151.01/478,837.61
  6. Step 6: Final answer
    x = 364,302.60

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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.