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Finding the Fourth Proportional to 400,476.86, 601,130.46 and 268,280.91

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Solution

The fourth proportional to 400,476.86, 601,130.46 and 268,280.91 is: 402,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,476.86 : 601,130.46 = 268,280.91 : x
  2. Step 2: Convert to fraction form
    400,476.86/601,130.46 = 268,280.91/x
  3. Step 3: Cross multiply
    400,476.86x = 601,130.46 × 268,280.91
  4. Step 4: Simplify right side
    400,476.86x = 161,271,827,843.57
  5. Step 5: Solve for x
    x = 161,271,827,843.57/400,476.86
  6. Step 6: Final answer
    x = 402,699.49

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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.