Home / 989,836.60-1,487,865.30-971,174.20

Finding the Fourth Proportional to 989,836.60, 1,487,865.30 and 971,174.20

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Solution

The fourth proportional to 989,836.60, 1,487,865.30 and 971,174.20 is: 1,459,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,836.60 : 1,487,865.30 = 971,174.20 : x
  2. Step 2: Convert to fraction form
    989,836.60/1,487,865.30 = 971,174.20/x
  3. Step 3: Cross multiply
    989,836.60x = 1,487,865.30 × 971,174.20
  4. Step 4: Simplify right side
    989,836.60x = 1,444,976,392,435.26
  5. Step 5: Solve for x
    x = 1,444,976,392,435.26/989,836.60
  6. Step 6: Final answer
    x = 1,459,813.06

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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.