Home / 631,220.32-871,088.88-344,735.20

Finding the Fourth Proportional to 631,220.32, 871,088.88 and 344,735.20

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Solution

The fourth proportional to 631,220.32, 871,088.88 and 344,735.20 is: 475,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,220.32 : 871,088.88 = 344,735.20 : x
  2. Step 2: Convert to fraction form
    631,220.32/871,088.88 = 344,735.20/x
  3. Step 3: Cross multiply
    631,220.32x = 871,088.88 × 344,735.20
  4. Step 4: Simplify right side
    631,220.32x = 300,294,999,264.58
  5. Step 5: Solve for x
    x = 300,294,999,264.58/631,220.32
  6. Step 6: Final answer
    x = 475,737.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.