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Finding the Fourth Proportional to 722,860.08, 997,219.80 and 436,288.56

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Solution

The fourth proportional to 722,860.08, 997,219.80 and 436,288.56 is: 601,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,860.08 : 997,219.80 = 436,288.56 : x
  2. Step 2: Convert to fraction form
    722,860.08/997,219.80 = 436,288.56/x
  3. Step 3: Cross multiply
    722,860.08x = 997,219.80 × 436,288.56
  4. Step 4: Simplify right side
    722,860.08x = 435,075,590,545.49
  5. Step 5: Solve for x
    x = 435,075,590,545.49/722,860.08
  6. Step 6: Final answer
    x = 601,880.78

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1.5x scale

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.