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Finding the Fourth Proportional to 399,097.80, 598,646.70 and 362,356.20

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Solution

The fourth proportional to 399,097.80, 598,646.70 and 362,356.20 is: 543,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,097.80 : 598,646.70 = 362,356.20 : x
  2. Step 2: Convert to fraction form
    399,097.80/598,646.70 = 362,356.20/x
  3. Step 3: Cross multiply
    399,097.80x = 598,646.70 × 362,356.20
  4. Step 4: Simplify right side
    399,097.80x = 216,923,343,354.54
  5. Step 5: Solve for x
    x = 216,923,343,354.54/399,097.80
  6. Step 6: Final answer
    x = 543,534.30

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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.