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Finding the Fourth Proportional to 602,055.28, 830,845.65 and 330,148

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Solution

The fourth proportional to 602,055.28, 830,845.65 and 330,148 is: 455,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,055.28 : 830,845.65 = 330,148 : x
  2. Step 2: Convert to fraction form
    602,055.28/830,845.65 = 330,148/x
  3. Step 3: Cross multiply
    602,055.28x = 830,845.65 × 330,148
  4. Step 4: Simplify right side
    602,055.28x = 274,302,029,656.20
  5. Step 5: Solve for x
    x = 274,302,029,656.20/602,055.28
  6. Step 6: Final answer
    x = 455,609.37

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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.