Home / 983,905.80-1,475,858.70-668,977.80

Finding the Fourth Proportional to 983,905.80, 1,475,858.70 and 668,977.80

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Solution

The fourth proportional to 983,905.80, 1,475,858.70 and 668,977.80 is: 1,003,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,905.80 : 1,475,858.70 = 668,977.80 : x
  2. Step 2: Convert to fraction form
    983,905.80/1,475,858.70 = 668,977.80/x
  3. Step 3: Cross multiply
    983,905.80x = 1,475,858.70 × 668,977.80
  4. Step 4: Simplify right side
    983,905.80x = 987,316,706,236.86
  5. Step 5: Solve for x
    x = 987,316,706,236.86/983,905.80
  6. Step 6: Final answer
    x = 1,003,466.70

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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.