Home / 912,884.07-1,369,450.69-380,280.54

Finding the Fourth Proportional to 912,884.07, 1,369,450.69 and 380,280.54

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Solution

The fourth proportional to 912,884.07, 1,369,450.69 and 380,280.54 is: 570,472.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,884.07 : 1,369,450.69 = 380,280.54 : x
  2. Step 2: Convert to fraction form
    912,884.07/1,369,450.69 = 380,280.54/x
  3. Step 3: Cross multiply
    912,884.07x = 1,369,450.69 × 380,280.54
  4. Step 4: Simplify right side
    912,884.07x = 520,775,446,945.87
  5. Step 5: Solve for x
    x = 520,775,446,945.87/912,884.07
  6. Step 6: Final answer
    x = 570,472.71

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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.