Home / 1,211,439-1,671,820.38-674,929.56

Finding the Fourth Proportional to 1,211,439, 1,671,820.38 and 674,929.56

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Solution

The fourth proportional to 1,211,439, 1,671,820.38 and 674,929.56 is: 931,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,439 : 1,671,820.38 = 674,929.56 : x
  2. Step 2: Convert to fraction form
    1,211,439/1,671,820.38 = 674,929.56/x
  3. Step 3: Cross multiply
    1,211,439x = 1,671,820.38 × 674,929.56
  4. Step 4: Simplify right side
    1,211,439x = 1,128,360,993,472.43
  5. Step 5: Solve for x
    x = 1,128,360,993,472.43/1,211,439
  6. Step 6: Final answer
    x = 931,422.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.