Home / 920,152.82-1,380,510.93-471,191.57

Finding the Fourth Proportional to 920,152.82, 1,380,510.93 and 471,191.57

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Solution

The fourth proportional to 920,152.82, 1,380,510.93 and 471,191.57 is: 706,931.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,152.82 : 1,380,510.93 = 471,191.57 : x
  2. Step 2: Convert to fraction form
    920,152.82/1,380,510.93 = 471,191.57/x
  3. Step 3: Cross multiply
    920,152.82x = 1,380,510.93 × 471,191.57
  4. Step 4: Simplify right side
    920,152.82x = 650,485,112,550.19
  5. Step 5: Solve for x
    x = 650,485,112,550.19/920,152.82
  6. Step 6: Final answer
    x = 706,931.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.