Home / 1,219,540-1,830,432.96-620,929.12

Finding the Fourth Proportional to 1,219,540, 1,830,432.96 and 620,929.12

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Solution

The fourth proportional to 1,219,540, 1,830,432.96 and 620,929.12 is: 931,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,540 : 1,830,432.96 = 620,929.12 : x
  2. Step 2: Convert to fraction form
    1,219,540/1,830,432.96 = 620,929.12/x
  3. Step 3: Cross multiply
    1,219,540x = 1,830,432.96 × 620,929.12
  4. Step 4: Simplify right side
    1,219,540x = 1,136,569,127,071.80
  5. Step 5: Solve for x
    x = 1,136,569,127,071.80/1,219,540
  6. Step 6: Final answer
    x = 931,965.44

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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.