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Finding the Fourth Proportional to 658,367.84, 908,548.80 and 356,561.84

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Solution

The fourth proportional to 658,367.84, 908,548.80 and 356,561.84 is: 492,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,367.84 : 908,548.80 = 356,561.84 : x
  2. Step 2: Convert to fraction form
    658,367.84/908,548.80 = 356,561.84/x
  3. Step 3: Cross multiply
    658,367.84x = 908,548.80 × 356,561.84
  4. Step 4: Simplify right side
    658,367.84x = 323,953,831,857.79
  5. Step 5: Solve for x
    x = 323,953,831,857.79/658,367.84
  6. Step 6: Final answer
    x = 492,055.98

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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.