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Finding the Fourth Proportional to 572,280.02, 789,783.78 and 330,572.78

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Solution

The fourth proportional to 572,280.02, 789,783.78 and 330,572.78 is: 456,212.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,280.02 : 789,783.78 = 330,572.78 : x
  2. Step 2: Convert to fraction form
    572,280.02/789,783.78 = 330,572.78/x
  3. Step 3: Cross multiply
    572,280.02x = 789,783.78 × 330,572.78
  4. Step 4: Simplify right side
    572,280.02x = 261,081,020,005.93
  5. Step 5: Solve for x
    x = 261,081,020,005.93/572,280.02
  6. Step 6: Final answer
    x = 456,212.01

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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.