Home / 842,143.36-1,263,715.32-310,038.16

Finding the Fourth Proportional to 842,143.36, 1,263,715.32 and 310,038.16

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Solution

The fourth proportional to 842,143.36, 1,263,715.32 and 310,038.16 is: 465,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,143.36 : 1,263,715.32 = 310,038.16 : x
  2. Step 2: Convert to fraction form
    842,143.36/1,263,715.32 = 310,038.16/x
  3. Step 3: Cross multiply
    842,143.36x = 1,263,715.32 × 310,038.16
  4. Step 4: Simplify right side
    842,143.36x = 391,799,972,576.61
  5. Step 5: Solve for x
    x = 391,799,972,576.61/842,143.36
  6. Step 6: Final answer
    x = 465,241.42

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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.