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Finding the Fourth Proportional to 601,990.34, 830,756.01 and 330,083.06

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Solution

The fourth proportional to 601,990.34, 830,756.01 and 330,083.06 is: 455,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,990.34 : 830,756.01 = 330,083.06 : x
  2. Step 2: Convert to fraction form
    601,990.34/830,756.01 = 330,083.06/x
  3. Step 3: Cross multiply
    601,990.34x = 830,756.01 × 330,083.06
  4. Step 4: Simplify right side
    601,990.34x = 274,218,485,894.19
  5. Step 5: Solve for x
    x = 274,218,485,894.19/601,990.34
  6. Step 6: Final answer
    x = 455,519.74

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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.