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Finding the Fourth Proportional to 658,047.04, 908,106.96 and 356,240.32

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Solution

The fourth proportional to 658,047.04, 908,106.96 and 356,240.32 is: 491,612.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,047.04 : 908,106.96 = 356,240.32 : x
  2. Step 2: Convert to fraction form
    658,047.04/908,106.96 = 356,240.32/x
  3. Step 3: Cross multiply
    658,047.04x = 908,106.96 × 356,240.32
  4. Step 4: Simplify right side
    658,047.04x = 323,504,314,024.63
  5. Step 5: Solve for x
    x = 323,504,314,024.63/658,047.04
  6. Step 6: Final answer
    x = 491,612.75

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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.