Home / 987,341.60-1,481,012.40-909,581.60

Finding the Fourth Proportional to 987,341.60, 1,481,012.40 and 909,581.60

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Solution

The fourth proportional to 987,341.60, 1,481,012.40 and 909,581.60 is: 1,364,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,341.60 : 1,481,012.40 = 909,581.60 : x
  2. Step 2: Convert to fraction form
    987,341.60/1,481,012.40 = 909,581.60/x
  3. Step 3: Cross multiply
    987,341.60x = 1,481,012.40 × 909,581.60
  4. Step 4: Simplify right side
    987,341.60x = 1,347,101,628,411.84
  5. Step 5: Solve for x
    x = 1,347,101,628,411.84/987,341.60
  6. Step 6: Final answer
    x = 1,364,372.40

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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.