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Finding the Fourth Proportional to 602,020.71, 830,779.08 and 330,090.96

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Solution

The fourth proportional to 602,020.71, 830,779.08 and 330,090.96 is: 455,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,020.71 : 830,779.08 = 330,090.96 : x
  2. Step 2: Convert to fraction form
    602,020.71/830,779.08 = 330,090.96/x
  3. Step 3: Cross multiply
    602,020.71x = 830,779.08 × 330,090.96
  4. Step 4: Simplify right side
    602,020.71x = 274,232,664,065.12
  5. Step 5: Solve for x
    x = 274,232,664,065.12/602,020.71
  6. Step 6: Final answer
    x = 455,520.32

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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.