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Finding the Fourth Proportional to 668,673.50, 922,075.65 and 572,196.60

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Solution

The fourth proportional to 668,673.50, 922,075.65 and 572,196.60 is: 789,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,673.50 : 922,075.65 = 572,196.60 : x
  2. Step 2: Convert to fraction form
    668,673.50/922,075.65 = 572,196.60/x
  3. Step 3: Cross multiply
    668,673.50x = 922,075.65 × 572,196.60
  4. Step 4: Simplify right side
    668,673.50x = 527,608,551,872.79
  5. Step 5: Solve for x
    x = 527,608,551,872.79/668,673.50
  6. Step 6: Final answer
    x = 789,037.63

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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.