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Finding the Fourth Proportional to 397,960.80, 596,552.40 and 355,970.40

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Solution

The fourth proportional to 397,960.80, 596,552.40 and 355,970.40 is: 533,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,960.80 : 596,552.40 = 355,970.40 : x
  2. Step 2: Convert to fraction form
    397,960.80/596,552.40 = 355,970.40/x
  3. Step 3: Cross multiply
    397,960.80x = 596,552.40 × 355,970.40
  4. Step 4: Simplify right side
    397,960.80x = 212,354,996,448.96
  5. Step 5: Solve for x
    x = 212,354,996,448.96/397,960.80
  6. Step 6: Final answer
    x = 533,607.82

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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.