Home / 1,420,636.76-2,130,953.27-355,678.69

Finding the Fourth Proportional to 1,420,636.76, 2,130,953.27 and 355,678.69

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Solution

The fourth proportional to 1,420,636.76, 2,130,953.27 and 355,678.69 is: 533,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,636.76 : 2,130,953.27 = 355,678.69 : x
  2. Step 2: Convert to fraction form
    1,420,636.76/2,130,953.27 = 355,678.69/x
  3. Step 3: Cross multiply
    1,420,636.76x = 2,130,953.27 × 355,678.69
  4. Step 4: Simplify right side
    1,420,636.76x = 757,934,667,524.82
  5. Step 5: Solve for x
    x = 757,934,667,524.82/1,420,636.76
  6. Step 6: Final answer
    x = 533,517.57

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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.