Home / 872,900.43-1,204,590.74-490,927.11

Finding the Fourth Proportional to 872,900.43, 1,204,590.74 and 490,927.11

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Solution

The fourth proportional to 872,900.43, 1,204,590.74 and 490,927.11 is: 677,472.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,900.43 : 1,204,590.74 = 490,927.11 : x
  2. Step 2: Convert to fraction form
    872,900.43/1,204,590.74 = 490,927.11/x
  3. Step 3: Cross multiply
    872,900.43x = 1,204,590.74 × 490,927.11
  4. Step 4: Simplify right side
    872,900.43x = 591,366,248,266.33
  5. Step 5: Solve for x
    x = 591,366,248,266.33/872,900.43
  6. Step 6: Final answer
    x = 677,472.74

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1.5x scale

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.