Home / 919,661.04-1,379,724.84-288,580.32

Finding the Fourth Proportional to 919,661.04, 1,379,724.84 and 288,580.32

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Solution

The fourth proportional to 919,661.04, 1,379,724.84 and 288,580.32 is: 432,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,661.04 : 1,379,724.84 = 288,580.32 : x
  2. Step 2: Convert to fraction form
    919,661.04/1,379,724.84 = 288,580.32/x
  3. Step 3: Cross multiply
    919,661.04x = 1,379,724.84 × 288,580.32
  4. Step 4: Simplify right side
    919,661.04x = 398,161,435,839.15
  5. Step 5: Solve for x
    x = 398,161,435,839.15/919,661.04
  6. Step 6: Final answer
    x = 432,943.68

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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.