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Finding the Fourth Proportional to 605,636.80, 908,455.20 and 268,547.20

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Solution

The fourth proportional to 605,636.80, 908,455.20 and 268,547.20 is: 402,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,636.80 : 908,455.20 = 268,547.20 : x
  2. Step 2: Convert to fraction form
    605,636.80/908,455.20 = 268,547.20/x
  3. Step 3: Cross multiply
    605,636.80x = 908,455.20 × 268,547.20
  4. Step 4: Simplify right side
    605,636.80x = 243,963,100,285.44
  5. Step 5: Solve for x
    x = 243,963,100,285.44/605,636.80
  6. Step 6: Final answer
    x = 402,820.80

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1.5x scale

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.