Home / 448,844.64-619,429.30-257,870.40

Finding the Fourth Proportional to 448,844.64, 619,429.30 and 257,870.40

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Solution

The fourth proportional to 448,844.64, 619,429.30 and 257,870.40 is: 355,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,844.64 : 619,429.30 = 257,870.40 : x
  2. Step 2: Convert to fraction form
    448,844.64/619,429.30 = 257,870.40/x
  3. Step 3: Cross multiply
    448,844.64x = 619,429.30 × 257,870.40
  4. Step 4: Simplify right side
    448,844.64x = 159,732,481,362.72
  5. Step 5: Solve for x
    x = 159,732,481,362.72/448,844.64
  6. Step 6: Final answer
    x = 355,874.77

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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.