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Finding the Fourth Proportional to 397,868.40, 596,802.60 and 354,322.80

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Solution

The fourth proportional to 397,868.40, 596,802.60 and 354,322.80 is: 531,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,868.40 : 596,802.60 = 354,322.80 : x
  2. Step 2: Convert to fraction form
    397,868.40/596,802.60 = 354,322.80/x
  3. Step 3: Cross multiply
    397,868.40x = 596,802.60 × 354,322.80
  4. Step 4: Simplify right side
    397,868.40x = 211,460,768,279.28
  5. Step 5: Solve for x
    x = 211,460,768,279.28/397,868.40
  6. Step 6: Final answer
    x = 531,484.20

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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.