Home / 1,657,643.40-2,486,465.10-860,481.90

Finding the Fourth Proportional to 1,657,643.40, 2,486,465.10 and 860,481.90

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Solution

The fourth proportional to 1,657,643.40, 2,486,465.10 and 860,481.90 is: 1,290,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,643.40 : 2,486,465.10 = 860,481.90 : x
  2. Step 2: Convert to fraction form
    1,657,643.40/2,486,465.10 = 860,481.90/x
  3. Step 3: Cross multiply
    1,657,643.40x = 2,486,465.10 × 860,481.90
  4. Step 4: Simplify right side
    1,657,643.40x = 2,139,558,213,531.69
  5. Step 5: Solve for x
    x = 2,139,558,213,531.69/1,657,643.40
  6. Step 6: Final answer
    x = 1,290,722.85

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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.