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Finding the Fourth Proportional to 601,985.99, 830,736.28 and 330,049.40

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Solution

The fourth proportional to 601,985.99, 830,736.28 and 330,049.40 is: 455,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,985.99 : 830,736.28 = 330,049.40 : x
  2. Step 2: Convert to fraction form
    601,985.99/830,736.28 = 330,049.40/x
  3. Step 3: Cross multiply
    601,985.99x = 830,736.28 × 330,049.40
  4. Step 4: Simplify right side
    601,985.99x = 274,184,010,775.74
  5. Step 5: Solve for x
    x = 274,184,010,775.74/601,985.99
  6. Step 6: Final answer
    x = 455,465.77

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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.