Home / 478,721.95-660,637.63-263,862.87

Finding the Fourth Proportional to 478,721.95, 660,637.63 and 263,862.87

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Solution

The fourth proportional to 478,721.95, 660,637.63 and 263,862.87 is: 364,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,721.95 : 660,637.63 = 263,862.87 : x
  2. Step 2: Convert to fraction form
    478,721.95/660,637.63 = 263,862.87/x
  3. Step 3: Cross multiply
    478,721.95x = 660,637.63 × 263,862.87
  4. Step 4: Simplify right side
    478,721.95x = 174,317,741,081.80
  5. Step 5: Solve for x
    x = 174,317,741,081.80/478,721.95
  6. Step 6: Final answer
    x = 364,131.50

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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.