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Finding the Fourth Proportional to 612,840.06, 845,775.27 and 358,229.52

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Solution

The fourth proportional to 612,840.06, 845,775.27 and 358,229.52 is: 494,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,840.06 : 845,775.27 = 358,229.52 : x
  2. Step 2: Convert to fraction form
    612,840.06/845,775.27 = 358,229.52/x
  3. Step 3: Cross multiply
    612,840.06x = 845,775.27 × 358,229.52
  4. Step 4: Simplify right side
    612,840.06x = 302,981,668,999.97
  5. Step 5: Solve for x
    x = 302,981,668,999.97/612,840.06
  6. Step 6: Final answer
    x = 494,389.46

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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.