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Finding the Fourth Proportional to 355,698.90, 498,807.90 and 355,698.90

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Solution

The fourth proportional to 355,698.90, 498,807.90 and 355,698.90 is: 498,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,698.90 : 498,807.90 = 355,698.90 : x
  2. Step 2: Convert to fraction form
    355,698.90/498,807.90 = 355,698.90/x
  3. Step 3: Cross multiply
    355,698.90x = 498,807.90 × 355,698.90
  4. Step 4: Simplify right side
    355,698.90x = 177,425,421,341.31
  5. Step 5: Solve for x
    x = 177,425,421,341.31/355,698.90
  6. Step 6: Final answer
    x = 498,807.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.