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Finding the Fourth Proportional to 658,190.95, 908,298.63 and 356,384.95

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Solution

The fourth proportional to 658,190.95, 908,298.63 and 356,384.95 is: 491,808.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,190.95 : 908,298.63 = 356,384.95 : x
  2. Step 2: Convert to fraction form
    658,190.95/908,298.63 = 356,384.95/x
  3. Step 3: Cross multiply
    658,190.95x = 908,298.63 × 356,384.95
  4. Step 4: Simplify right side
    658,190.95x = 323,703,959,566.87
  5. Step 5: Solve for x
    x = 323,703,959,566.87/658,190.95
  6. Step 6: Final answer
    x = 491,808.59

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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.