Home / 1,019,630-1,406,515.48-611,623.28

Finding the Fourth Proportional to 1,019,630, 1,406,515.48 and 611,623.28

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Solution

The fourth proportional to 1,019,630, 1,406,515.48 and 611,623.28 is: 843,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,630 : 1,406,515.48 = 611,623.28 : x
  2. Step 2: Convert to fraction form
    1,019,630/1,406,515.48 = 611,623.28/x
  3. Step 3: Cross multiply
    1,019,630x = 1,406,515.48 × 611,623.28
  4. Step 4: Simplify right side
    1,019,630x = 860,257,611,248.37
  5. Step 5: Solve for x
    x = 860,257,611,248.37/1,019,630
  6. Step 6: Final answer
    x = 843,695.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.