Home / 913,727.21-1,260,902.67-505,800.23

Finding the Fourth Proportional to 913,727.21, 1,260,902.67 and 505,800.23

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Solution

The fourth proportional to 913,727.21, 1,260,902.67 and 505,800.23 is: 697,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,727.21 : 1,260,902.67 = 505,800.23 : x
  2. Step 2: Convert to fraction form
    913,727.21/1,260,902.67 = 505,800.23/x
  3. Step 3: Cross multiply
    913,727.21x = 1,260,902.67 × 505,800.23
  4. Step 4: Simplify right side
    913,727.21x = 637,764,860,493.61
  5. Step 5: Solve for x
    x = 637,764,860,493.61/913,727.21
  6. Step 6: Final answer
    x = 697,981.69

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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.