Home / 780,916.15-1,171,665.83-307,931.23

Finding the Fourth Proportional to 780,916.15, 1,171,665.83 and 307,931.23

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Solution

The fourth proportional to 780,916.15, 1,171,665.83 and 307,931.23 is: 462,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,916.15 : 1,171,665.83 = 307,931.23 : x
  2. Step 2: Convert to fraction form
    780,916.15/1,171,665.83 = 307,931.23/x
  3. Step 3: Cross multiply
    780,916.15x = 1,171,665.83 × 307,931.23
  4. Step 4: Simplify right side
    780,916.15x = 360,792,500,180.87
  5. Step 5: Solve for x
    x = 360,792,500,180.87/780,916.15
  6. Step 6: Final answer
    x = 462,011.83

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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.