Home / 859,325.40-1,286,363.70-670,368.60

Finding the Fourth Proportional to 859,325.40, 1,286,363.70 and 670,368.60

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Solution

The fourth proportional to 859,325.40, 1,286,363.70 and 670,368.60 is: 1,003,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,325.40 : 1,286,363.70 = 670,368.60 : x
  2. Step 2: Convert to fraction form
    859,325.40/1,286,363.70 = 670,368.60/x
  3. Step 3: Cross multiply
    859,325.40x = 1,286,363.70 × 670,368.60
  4. Step 4: Simplify right side
    859,325.40x = 862,337,832,659.82
  5. Step 5: Solve for x
    x = 862,337,832,659.82/859,325.40
  6. Step 6: Final answer
    x = 1,003,505.58

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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.