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Finding the Fourth Proportional to 450,036.04, 621,027.90 and 256,489.06

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Solution

The fourth proportional to 450,036.04, 621,027.90 and 256,489.06 is: 353,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,036.04 : 621,027.90 = 256,489.06 : x
  2. Step 2: Convert to fraction form
    450,036.04/621,027.90 = 256,489.06/x
  3. Step 3: Cross multiply
    450,036.04x = 621,027.90 × 256,489.06
  4. Step 4: Simplify right side
    450,036.04x = 159,286,862,304.77
  5. Step 5: Solve for x
    x = 159,286,862,304.77/450,036.04
  6. Step 6: Final answer
    x = 353,942.46

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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.