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Finding the Fourth Proportional to 602,289.17, 831,144.75 and 330,354.65

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Solution

The fourth proportional to 602,289.17, 831,144.75 and 330,354.65 is: 455,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,289.17 : 831,144.75 = 330,354.65 : x
  2. Step 2: Convert to fraction form
    602,289.17/831,144.75 = 330,354.65/x
  3. Step 3: Cross multiply
    602,289.17x = 831,144.75 × 330,354.65
  4. Step 4: Simplify right side
    602,289.17x = 274,572,533,824.62
  5. Step 5: Solve for x
    x = 274,572,533,824.62/602,289.17
  6. Step 6: Final answer
    x = 455,881.57

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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.