Home / 679,749.76-1,019,650.56-253,391.68

Finding the Fourth Proportional to 679,749.76, 1,019,650.56 and 253,391.68

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Solution

The fourth proportional to 679,749.76, 1,019,650.56 and 253,391.68 is: 380,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,749.76 : 1,019,650.56 = 253,391.68 : x
  2. Step 2: Convert to fraction form
    679,749.76/1,019,650.56 = 253,391.68/x
  3. Step 3: Cross multiply
    679,749.76x = 1,019,650.56 × 253,391.68
  4. Step 4: Simplify right side
    679,749.76x = 258,370,968,411.34
  5. Step 5: Solve for x
    x = 258,370,968,411.34/679,749.76
  6. Step 6: Final answer
    x = 380,097.18

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1.5x scale

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.