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Finding the Fourth Proportional to 474,886.16, 655,314 and 260,028.80

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Solution

The fourth proportional to 474,886.16, 655,314 and 260,028.80 is: 358,823.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,886.16 : 655,314 = 260,028.80 : x
  2. Step 2: Convert to fraction form
    474,886.16/655,314 = 260,028.80/x
  3. Step 3: Cross multiply
    474,886.16x = 655,314 × 260,028.80
  4. Step 4: Simplify right side
    474,886.16x = 170,400,513,043.20
  5. Step 5: Solve for x
    x = 170,400,513,043.20/474,886.16
  6. Step 6: Final answer
    x = 358,823.92

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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.