Home / 989,206.60-1,483,809.90-646,722.40

Finding the Fourth Proportional to 989,206.60, 1,483,809.90 and 646,722.40

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Solution

The fourth proportional to 989,206.60, 1,483,809.90 and 646,722.40 is: 970,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,206.60 : 1,483,809.90 = 646,722.40 : x
  2. Step 2: Convert to fraction form
    989,206.60/1,483,809.90 = 646,722.40/x
  3. Step 3: Cross multiply
    989,206.60x = 1,483,809.90 × 646,722.40
  4. Step 4: Simplify right side
    989,206.60x = 959,613,099,671.76
  5. Step 5: Solve for x
    x = 959,613,099,671.76/989,206.60
  6. Step 6: Final answer
    x = 970,083.60

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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.