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Finding the Fourth Proportional to 602,685.76, 831,651.34 and 357,628.28

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Solution

The fourth proportional to 602,685.76, 831,651.34 and 357,628.28 is: 493,494.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,685.76 : 831,651.34 = 357,628.28 : x
  2. Step 2: Convert to fraction form
    602,685.76/831,651.34 = 357,628.28/x
  3. Step 3: Cross multiply
    602,685.76x = 831,651.34 × 357,628.28
  4. Step 4: Simplify right side
    602,685.76x = 297,422,038,283.90
  5. Step 5: Solve for x
    x = 297,422,038,283.90/602,685.76
  6. Step 6: Final answer
    x = 493,494.38

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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.