Home / 909,923.80-1,364,756.10-310,912.60

Finding the Fourth Proportional to 909,923.80, 1,364,756.10 and 310,912.60

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Solution

The fourth proportional to 909,923.80, 1,364,756.10 and 310,912.60 is: 466,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,923.80 : 1,364,756.10 = 310,912.60 : x
  2. Step 2: Convert to fraction form
    909,923.80/1,364,756.10 = 310,912.60/x
  3. Step 3: Cross multiply
    909,923.80x = 1,364,756.10 × 310,912.60
  4. Step 4: Simplify right side
    909,923.80x = 424,319,867,416.86
  5. Step 5: Solve for x
    x = 424,319,867,416.86/909,923.80
  6. Step 6: Final answer
    x = 466,324.62

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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.