Home / 685,125.60-1,027,688.40-652,466.40

Finding the Fourth Proportional to 685,125.60, 1,027,688.40 and 652,466.40

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Solution

The fourth proportional to 685,125.60, 1,027,688.40 and 652,466.40 is: 978,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,125.60 : 1,027,688.40 = 652,466.40 : x
  2. Step 2: Convert to fraction form
    685,125.60/1,027,688.40 = 652,466.40/x
  3. Step 3: Cross multiply
    685,125.60x = 1,027,688.40 × 652,466.40
  4. Step 4: Simplify right side
    685,125.60x = 670,532,150,669.76
  5. Step 5: Solve for x
    x = 670,532,150,669.76/685,125.60
  6. Step 6: Final answer
    x = 978,699.60

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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.