Home / 919,938.24-1,378,376.32-320,569.04

Finding the Fourth Proportional to 919,938.24, 1,378,376.32 and 320,569.04

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Solution

The fourth proportional to 919,938.24, 1,378,376.32 and 320,569.04 is: 480,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,938.24 : 1,378,376.32 = 320,569.04 : x
  2. Step 2: Convert to fraction form
    919,938.24/1,378,376.32 = 320,569.04/x
  3. Step 3: Cross multiply
    919,938.24x = 1,378,376.32 × 320,569.04
  4. Step 4: Simplify right side
    919,938.24x = 441,864,773,661.13
  5. Step 5: Solve for x
    x = 441,864,773,661.13/919,938.24
  6. Step 6: Final answer
    x = 480,320.04

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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.