Home / 727,535.20-1,090,784.40-278,082.40

Finding the Fourth Proportional to 727,535.20, 1,090,784.40 and 278,082.40

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Solution

The fourth proportional to 727,535.20, 1,090,784.40 and 278,082.40 is: 416,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,535.20 : 1,090,784.40 = 278,082.40 : x
  2. Step 2: Convert to fraction form
    727,535.20/1,090,784.40 = 278,082.40/x
  3. Step 3: Cross multiply
    727,535.20x = 1,090,784.40 × 278,082.40
  4. Step 4: Simplify right side
    727,535.20x = 303,327,943,834.56
  5. Step 5: Solve for x
    x = 303,327,943,834.56/727,535.20
  6. Step 6: Final answer
    x = 416,925.45

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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.