Home / 872,678.56-1,204,272.48-490,695.52

Finding the Fourth Proportional to 872,678.56, 1,204,272.48 and 490,695.52

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Solution

The fourth proportional to 872,678.56, 1,204,272.48 and 490,695.52 is: 677,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,678.56 : 1,204,272.48 = 490,695.52 : x
  2. Step 2: Convert to fraction form
    872,678.56/1,204,272.48 = 490,695.52/x
  3. Step 3: Cross multiply
    872,678.56x = 1,204,272.48 × 490,695.52
  4. Step 4: Simplify right side
    872,678.56x = 590,931,110,795.29
  5. Step 5: Solve for x
    x = 590,931,110,795.29/872,678.56
  6. Step 6: Final answer
    x = 677,146.36

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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.