Home / 871,386.08-1,306,685.45-310,435.16

Finding the Fourth Proportional to 871,386.08, 1,306,685.45 and 310,435.16

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Solution

The fourth proportional to 871,386.08, 1,306,685.45 and 310,435.16 is: 465,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,386.08 : 1,306,685.45 = 310,435.16 : x
  2. Step 2: Convert to fraction form
    871,386.08/1,306,685.45 = 310,435.16/x
  3. Step 3: Cross multiply
    871,386.08x = 1,306,685.45 × 310,435.16
  4. Step 4: Simplify right side
    871,386.08x = 405,641,100,983.08
  5. Step 5: Solve for x
    x = 405,641,100,983.08/871,386.08
  6. Step 6: Final answer
    x = 465,512.49

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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.