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Finding the Fourth Proportional to 492,083.10, 738,124.65 and 314,790.30

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Solution

The fourth proportional to 492,083.10, 738,124.65 and 314,790.30 is: 472,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,083.10 : 738,124.65 = 314,790.30 : x
  2. Step 2: Convert to fraction form
    492,083.10/738,124.65 = 314,790.30/x
  3. Step 3: Cross multiply
    492,083.10x = 738,124.65 × 314,790.30
  4. Step 4: Simplify right side
    492,083.10x = 232,354,480,010.90
  5. Step 5: Solve for x
    x = 232,354,480,010.90/492,083.10
  6. Step 6: Final answer
    x = 472,185.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.