Home / 989,063.60-1,486,875.90-859,155.80

Finding the Fourth Proportional to 989,063.60, 1,486,875.90 and 859,155.80

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Solution

The fourth proportional to 989,063.60, 1,486,875.90 and 859,155.80 is: 1,291,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,063.60 : 1,486,875.90 = 859,155.80 : x
  2. Step 2: Convert to fraction form
    989,063.60/1,486,875.90 = 859,155.80/x
  3. Step 3: Cross multiply
    989,063.60x = 1,486,875.90 × 859,155.80
  4. Step 4: Simplify right side
    989,063.60x = 1,277,458,053,365.22
  5. Step 5: Solve for x
    x = 1,277,458,053,365.22/989,063.60
  6. Step 6: Final answer
    x = 1,291,583.33

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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.