Home / 776,127.41-1,164,332.13-320,719.75

Finding the Fourth Proportional to 776,127.41, 1,164,332.13 and 320,719.75

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Solution

The fourth proportional to 776,127.41, 1,164,332.13 and 320,719.75 is: 481,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,127.41 : 1,164,332.13 = 320,719.75 : x
  2. Step 2: Convert to fraction form
    776,127.41/1,164,332.13 = 320,719.75/x
  3. Step 3: Cross multiply
    776,127.41x = 1,164,332.13 × 320,719.75
  4. Step 4: Simplify right side
    776,127.41x = 373,424,306,739.74
  5. Step 5: Solve for x
    x = 373,424,306,739.74/776,127.41
  6. Step 6: Final answer
    x = 481,137.89

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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.