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Finding the Fourth Proportional to 631,248.88, 871,088.16 and 359,383

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Solution

The fourth proportional to 631,248.88, 871,088.16 and 359,383 is: 495,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,248.88 : 871,088.16 = 359,383 : x
  2. Step 2: Convert to fraction form
    631,248.88/871,088.16 = 359,383/x
  3. Step 3: Cross multiply
    631,248.88x = 871,088.16 × 359,383
  4. Step 4: Simplify right side
    631,248.88x = 313,054,276,205.28
  5. Step 5: Solve for x
    x = 313,054,276,205.28/631,248.88
  6. Step 6: Final answer
    x = 495,928.45

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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.