Home / 658,686.42-908,975.40-372,200.34

Finding the Fourth Proportional to 658,686.42, 908,975.40 and 372,200.34

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Solution

The fourth proportional to 658,686.42, 908,975.40 and 372,200.34 is: 513,629.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,686.42 : 908,975.40 = 372,200.34 : x
  2. Step 2: Convert to fraction form
    658,686.42/908,975.40 = 372,200.34/x
  3. Step 3: Cross multiply
    658,686.42x = 908,975.40 × 372,200.34
  4. Step 4: Simplify right side
    658,686.42x = 338,320,952,931.64
  5. Step 5: Solve for x
    x = 338,320,952,931.64/658,686.42
  6. Step 6: Final answer
    x = 513,629.77

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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.