Home / 677,467.80-1,016,201.70-666,970.20

Finding the Fourth Proportional to 677,467.80, 1,016,201.70 and 666,970.20

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Solution

The fourth proportional to 677,467.80, 1,016,201.70 and 666,970.20 is: 1,000,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,467.80 : 1,016,201.70 = 666,970.20 : x
  2. Step 2: Convert to fraction form
    677,467.80/1,016,201.70 = 666,970.20/x
  3. Step 3: Cross multiply
    677,467.80x = 1,016,201.70 × 666,970.20
  4. Step 4: Simplify right side
    677,467.80x = 677,776,251,089.34
  5. Step 5: Solve for x
    x = 677,776,251,089.34/677,467.80
  6. Step 6: Final answer
    x = 1,000,455.30

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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.