Home / 946,724.76-1,420,099.69-315,638.78

Finding the Fourth Proportional to 946,724.76, 1,420,099.69 and 315,638.78

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Solution

The fourth proportional to 946,724.76, 1,420,099.69 and 315,638.78 is: 473,462.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,724.76 : 1,420,099.69 = 315,638.78 : x
  2. Step 2: Convert to fraction form
    946,724.76/1,420,099.69 = 315,638.78/x
  3. Step 3: Cross multiply
    946,724.76x = 1,420,099.69 × 315,638.78
  4. Step 4: Simplify right side
    946,724.76x = 448,238,533,629.98
  5. Step 5: Solve for x
    x = 448,238,533,629.98/946,724.76
  6. Step 6: Final answer
    x = 473,462.35

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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.