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Finding the Fourth Proportional to 631,510.79, 946,627.77 and 271,916.15

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Solution

The fourth proportional to 631,510.79, 946,627.77 and 271,916.15 is: 407,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,510.79 : 946,627.77 = 271,916.15 : x
  2. Step 2: Convert to fraction form
    631,510.79/946,627.77 = 271,916.15/x
  3. Step 3: Cross multiply
    631,510.79x = 946,627.77 × 271,916.15
  4. Step 4: Simplify right side
    631,510.79x = 257,403,381,068.06
  5. Step 5: Solve for x
    x = 257,403,381,068.06/631,510.79
  6. Step 6: Final answer
    x = 407,599.34

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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.