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Finding the Fourth Proportional to 631,404.60, 946,450.80 and 346,657.20

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Solution

The fourth proportional to 631,404.60, 946,450.80 and 346,657.20 is: 519,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,404.60 : 946,450.80 = 346,657.20 : x
  2. Step 2: Convert to fraction form
    631,404.60/946,450.80 = 346,657.20/x
  3. Step 3: Cross multiply
    631,404.60x = 946,450.80 × 346,657.20
  4. Step 4: Simplify right side
    631,404.60x = 328,093,984,265.76
  5. Step 5: Solve for x
    x = 328,093,984,265.76/631,404.60
  6. Step 6: Final answer
    x = 519,625.58

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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.