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Finding the Fourth Proportional to 477,483.84, 715,264.64 and 220,954.80

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Solution

The fourth proportional to 477,483.84, 715,264.64 and 220,954.80 is: 330,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,483.84 : 715,264.64 = 220,954.80 : x
  2. Step 2: Convert to fraction form
    477,483.84/715,264.64 = 220,954.80/x
  3. Step 3: Cross multiply
    477,483.84x = 715,264.64 × 220,954.80
  4. Step 4: Simplify right side
    477,483.84x = 158,041,155,478.27
  5. Step 5: Solve for x
    x = 158,041,155,478.27/477,483.84
  6. Step 6: Final answer
    x = 330,987.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.