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Finding the Fourth Proportional to 572,184.72, 789,599.88 and 317,529.36

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Solution

The fourth proportional to 572,184.72, 789,599.88 and 317,529.36 is: 438,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,184.72 : 789,599.88 = 317,529.36 : x
  2. Step 2: Convert to fraction form
    572,184.72/789,599.88 = 317,529.36/x
  3. Step 3: Cross multiply
    572,184.72x = 789,599.88 × 317,529.36
  4. Step 4: Simplify right side
    572,184.72x = 250,721,144,552.48
  5. Step 5: Solve for x
    x = 250,721,144,552.48/572,184.72
  6. Step 6: Final answer
    x = 438,182.17

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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.