Home / 990,950.40-1,486,425.60-836,985.60

Finding the Fourth Proportional to 990,950.40, 1,486,425.60 and 836,985.60

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Solution

The fourth proportional to 990,950.40, 1,486,425.60 and 836,985.60 is: 1,255,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,950.40 : 1,486,425.60 = 836,985.60 : x
  2. Step 2: Convert to fraction form
    990,950.40/1,486,425.60 = 836,985.60/x
  3. Step 3: Cross multiply
    990,950.40x = 1,486,425.60 × 836,985.60
  4. Step 4: Simplify right side
    990,950.40x = 1,244,116,822,671.36
  5. Step 5: Solve for x
    x = 1,244,116,822,671.36/990,950.40
  6. Step 6: Final answer
    x = 1,255,478.40

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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.