Home / 977,435.80-1,464,987.30-408,815.80

Finding the Fourth Proportional to 977,435.80, 1,464,987.30 and 408,815.80

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Solution

The fourth proportional to 977,435.80, 1,464,987.30 and 408,815.80 is: 612,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,435.80 : 1,464,987.30 = 408,815.80 : x
  2. Step 2: Convert to fraction form
    977,435.80/1,464,987.30 = 408,815.80/x
  3. Step 3: Cross multiply
    977,435.80x = 1,464,987.30 × 408,815.80
  4. Step 4: Simplify right side
    977,435.80x = 598,909,955,039.34
  5. Step 5: Solve for x
    x = 598,909,955,039.34/977,435.80
  6. Step 6: Final answer
    x = 612,735.85

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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.