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Finding the Fourth Proportional to 602,149.96, 830,968.09 and 330,219.76

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Solution

The fourth proportional to 602,149.96, 830,968.09 and 330,219.76 is: 455,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,149.96 : 830,968.09 = 330,219.76 : x
  2. Step 2: Convert to fraction form
    602,149.96/830,968.09 = 330,219.76/x
  3. Step 3: Cross multiply
    602,149.96x = 830,968.09 × 330,219.76
  4. Step 4: Simplify right side
    602,149.96x = 274,402,083,247.46
  5. Step 5: Solve for x
    x = 274,402,083,247.46/602,149.96
  6. Step 6: Final answer
    x = 455,703.90

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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.