Home / 919,395.84-1,379,091.36-288,308.64

Finding the Fourth Proportional to 919,395.84, 1,379,091.36 and 288,308.64

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Solution

The fourth proportional to 919,395.84, 1,379,091.36 and 288,308.64 is: 432,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,395.84 : 1,379,091.36 = 288,308.64 : x
  2. Step 2: Convert to fraction form
    919,395.84/1,379,091.36 = 288,308.64/x
  3. Step 3: Cross multiply
    919,395.84x = 1,379,091.36 × 288,308.64
  4. Step 4: Simplify right side
    919,395.84x = 397,603,954,437.35
  5. Step 5: Solve for x
    x = 397,603,954,437.35/919,395.84
  6. Step 6: Final answer
    x = 432,462.21

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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.