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Finding the Fourth Proportional to 644,055.22, 888,798.18 and 357,576.04

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Solution

The fourth proportional to 644,055.22, 888,798.18 and 357,576.04 is: 493,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,055.22 : 888,798.18 = 357,576.04 : x
  2. Step 2: Convert to fraction form
    644,055.22/888,798.18 = 357,576.04/x
  3. Step 3: Cross multiply
    644,055.22x = 888,798.18 × 357,576.04
  4. Step 4: Simplify right side
    644,055.22x = 317,812,933,563.61
  5. Step 5: Solve for x
    x = 317,812,933,563.61/644,055.22
  6. Step 6: Final answer
    x = 493,456.03

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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.