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Finding the Fourth Proportional to 572,004.81, 789,366.74 and 317,355.39

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Solution

The fourth proportional to 572,004.81, 789,366.74 and 317,355.39 is: 437,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,004.81 : 789,366.74 = 317,355.39 : x
  2. Step 2: Convert to fraction form
    572,004.81/789,366.74 = 317,355.39/x
  3. Step 3: Cross multiply
    572,004.81x = 789,366.74 × 317,355.39
  4. Step 4: Simplify right side
    572,004.81x = 250,509,788,038.95
  5. Step 5: Solve for x
    x = 250,509,788,038.95/572,004.81
  6. Step 6: Final answer
    x = 437,950.49

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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.