Home / 679,424.34-1,019,415.96-300,145.08

Finding the Fourth Proportional to 679,424.34, 1,019,415.96 and 300,145.08

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Solution

The fourth proportional to 679,424.34, 1,019,415.96 and 300,145.08 is: 450,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,424.34 : 1,019,415.96 = 300,145.08 : x
  2. Step 2: Convert to fraction form
    679,424.34/1,019,415.96 = 300,145.08/x
  3. Step 3: Cross multiply
    679,424.34x = 1,019,415.96 × 300,145.08
  4. Step 4: Simplify right side
    679,424.34x = 305,972,684,867.48
  5. Step 5: Solve for x
    x = 305,972,684,867.48/679,424.34
  6. Step 6: Final answer
    x = 450,341.07

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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.