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Finding the Fourth Proportional to 401,746.79, 554,409.06 and 220,461.77

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Solution

The fourth proportional to 401,746.79, 554,409.06 and 220,461.77 is: 304,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,746.79 : 554,409.06 = 220,461.77 : x
  2. Step 2: Convert to fraction form
    401,746.79/554,409.06 = 220,461.77/x
  3. Step 3: Cross multiply
    401,746.79x = 554,409.06 × 220,461.77
  4. Step 4: Simplify right side
    401,746.79x = 122,226,002,671.64
  5. Step 5: Solve for x
    x = 122,226,002,671.64/401,746.79
  6. Step 6: Final answer
    x = 304,236.41

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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.