Home / 660,942.03-912,182.67-374,554.38

Finding the Fourth Proportional to 660,942.03, 912,182.67 and 374,554.38

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Solution

The fourth proportional to 660,942.03, 912,182.67 and 374,554.38 is: 516,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,942.03 : 912,182.67 = 374,554.38 : x
  2. Step 2: Convert to fraction form
    660,942.03/912,182.67 = 374,554.38/x
  3. Step 3: Cross multiply
    660,942.03x = 912,182.67 × 374,554.38
  4. Step 4: Simplify right side
    660,942.03x = 341,662,014,408.60
  5. Step 5: Solve for x
    x = 341,662,014,408.60/660,942.03
  6. Step 6: Final answer
    x = 516,931.89

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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.