Home / 612,629.16-918,008.16-257,449.02

Finding the Fourth Proportional to 612,629.16, 918,008.16 and 257,449.02

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Solution

The fourth proportional to 612,629.16, 918,008.16 and 257,449.02 is: 385,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,629.16 : 918,008.16 = 257,449.02 : x
  2. Step 2: Convert to fraction form
    612,629.16/918,008.16 = 257,449.02/x
  3. Step 3: Cross multiply
    612,629.16x = 918,008.16 × 257,449.02
  4. Step 4: Simplify right side
    612,629.16x = 236,340,301,144.00
  5. Step 5: Solve for x
    x = 236,340,301,144.00/612,629.16
  6. Step 6: Final answer
    x = 385,780.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.