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Finding the Fourth Proportional to 506,145.16, 698,450.34 and 279,777.16

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Solution

The fourth proportional to 506,145.16, 698,450.34 and 279,777.16 is: 386,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,145.16 : 698,450.34 = 279,777.16 : x
  2. Step 2: Convert to fraction form
    506,145.16/698,450.34 = 279,777.16/x
  3. Step 3: Cross multiply
    506,145.16x = 698,450.34 × 279,777.16
  4. Step 4: Simplify right side
    506,145.16x = 195,410,452,526.23
  5. Step 5: Solve for x
    x = 195,410,452,526.23/506,145.16
  6. Step 6: Final answer
    x = 386,075.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.