Home / 492,551.20-738,826.80-315,404.20

Finding the Fourth Proportional to 492,551.20, 738,826.80 and 315,404.20

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Solution

The fourth proportional to 492,551.20, 738,826.80 and 315,404.20 is: 473,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,551.20 : 738,826.80 = 315,404.20 : x
  2. Step 2: Convert to fraction form
    492,551.20/738,826.80 = 315,404.20/x
  3. Step 3: Cross multiply
    492,551.20x = 738,826.80 × 315,404.20
  4. Step 4: Simplify right side
    492,551.20x = 233,029,075,792.56
  5. Step 5: Solve for x
    x = 233,029,075,792.56/492,551.20
  6. Step 6: Final answer
    x = 473,106.30

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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.