Home / 2,657,438.40-3,986,740.80-860,404.80

Finding the Fourth Proportional to 2,657,438.40, 3,986,740.80 and 860,404.80

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Solution

The fourth proportional to 2,657,438.40, 3,986,740.80 and 860,404.80 is: 1,290,796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,438.40 : 3,986,740.80 = 860,404.80 : x
  2. Step 2: Convert to fraction form
    2,657,438.40/3,986,740.80 = 860,404.80/x
  3. Step 3: Cross multiply
    2,657,438.40x = 3,986,740.80 × 860,404.80
  4. Step 4: Simplify right side
    2,657,438.40x = 3,430,210,920,675.84
  5. Step 5: Solve for x
    x = 3,430,210,920,675.84/2,657,438.40
  6. Step 6: Final answer
    x = 1,290,796.02

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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.