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Finding the Fourth Proportional to 612,801.48, 845,690.10 and 370,947.22

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Solution

The fourth proportional to 612,801.48, 845,690.10 and 370,947.22 is: 511,921.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,801.48 : 845,690.10 = 370,947.22 : x
  2. Step 2: Convert to fraction form
    612,801.48/845,690.10 = 370,947.22/x
  3. Step 3: Cross multiply
    612,801.48x = 845,690.10 × 370,947.22
  4. Step 4: Simplify right side
    612,801.48x = 313,706,391,576.52
  5. Step 5: Solve for x
    x = 313,706,391,576.52/612,801.48
  6. Step 6: Final answer
    x = 511,921.73

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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.