Home / 766,186.51-1,148,491.19-339,923.08

Finding the Fourth Proportional to 766,186.51, 1,148,491.19 and 339,923.08

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Solution

The fourth proportional to 766,186.51, 1,148,491.19 and 339,923.08 is: 509,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,186.51 : 1,148,491.19 = 339,923.08 : x
  2. Step 2: Convert to fraction form
    766,186.51/1,148,491.19 = 339,923.08/x
  3. Step 3: Cross multiply
    766,186.51x = 1,148,491.19 × 339,923.08
  4. Step 4: Simplify right side
    766,186.51x = 390,398,658,936.63
  5. Step 5: Solve for x
    x = 390,398,658,936.63/766,186.51
  6. Step 6: Final answer
    x = 509,534.76

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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.