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Finding the Fourth Proportional to 538,036.20, 804,980.70 and 351,412.20

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Solution

The fourth proportional to 538,036.20, 804,980.70 and 351,412.20 is: 525,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,036.20 : 804,980.70 = 351,412.20 : x
  2. Step 2: Convert to fraction form
    538,036.20/804,980.70 = 351,412.20/x
  3. Step 3: Cross multiply
    538,036.20x = 804,980.70 × 351,412.20
  4. Step 4: Simplify right side
    538,036.20x = 282,880,038,744.54
  5. Step 5: Solve for x
    x = 282,880,038,744.54/538,036.20
  6. Step 6: Final answer
    x = 525,763.95

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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.