Home / 989,070.84-1,483,790.76-449,364.96

Finding the Fourth Proportional to 989,070.84, 1,483,790.76 and 449,364.96

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Solution

The fourth proportional to 989,070.84, 1,483,790.76 and 449,364.96 is: 674,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,070.84 : 1,483,790.76 = 449,364.96 : x
  2. Step 2: Convert to fraction form
    989,070.84/1,483,790.76 = 449,364.96/x
  3. Step 3: Cross multiply
    989,070.84x = 1,483,790.76 × 449,364.96
  4. Step 4: Simplify right side
    989,070.84x = 666,763,575,515.77
  5. Step 5: Solve for x
    x = 666,763,575,515.77/989,070.84
  6. Step 6: Final answer
    x = 674,131.26

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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.