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Finding the Fourth Proportional to 677,300.90, 946,977.10 and 677,300.90

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Solution

The fourth proportional to 677,300.90, 946,977.10 and 677,300.90 is: 946,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,300.90 : 946,977.10 = 677,300.90 : x
  2. Step 2: Convert to fraction form
    677,300.90/946,977.10 = 677,300.90/x
  3. Step 3: Cross multiply
    677,300.90x = 946,977.10 × 677,300.90
  4. Step 4: Simplify right side
    677,300.90x = 641,388,442,109.39
  5. Step 5: Solve for x
    x = 641,388,442,109.39/677,300.90
  6. Step 6: Final answer
    x = 946,977.10

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1.5x scale

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.