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Finding the Fourth Proportional to 660,968.37, 912,133.98 and 374,543.19

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Solution

The fourth proportional to 660,968.37, 912,133.98 and 374,543.19 is: 516,868.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,968.37 : 912,133.98 = 374,543.19 : x
  2. Step 2: Convert to fraction form
    660,968.37/912,133.98 = 374,543.19/x
  3. Step 3: Cross multiply
    660,968.37x = 912,133.98 × 374,543.19
  4. Step 4: Simplify right side
    660,968.37x = 341,633,570,576.60
  5. Step 5: Solve for x
    x = 341,633,570,576.60/660,968.37
  6. Step 6: Final answer
    x = 516,868.26

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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.