Home / 770,435.20-1,155,998.40-349,494.40

Finding the Fourth Proportional to 770,435.20, 1,155,998.40 and 349,494.40

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Solution

The fourth proportional to 770,435.20, 1,155,998.40 and 349,494.40 is: 524,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,435.20 : 1,155,998.40 = 349,494.40 : x
  2. Step 2: Convert to fraction form
    770,435.20/1,155,998.40 = 349,494.40/x
  3. Step 3: Cross multiply
    770,435.20x = 1,155,998.40 × 349,494.40
  4. Step 4: Simplify right side
    770,435.20x = 404,014,967,208.96
  5. Step 5: Solve for x
    x = 404,014,967,208.96/770,435.20
  6. Step 6: Final answer
    x = 524,398.38

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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.