Home / 1,218,091.32-1,680,923.10-674,228.16

Finding the Fourth Proportional to 1,218,091.32, 1,680,923.10 and 674,228.16

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Solution

The fourth proportional to 1,218,091.32, 1,680,923.10 and 674,228.16 is: 930,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,091.32 : 1,680,923.10 = 674,228.16 : x
  2. Step 2: Convert to fraction form
    1,218,091.32/1,680,923.10 = 674,228.16/x
  3. Step 3: Cross multiply
    1,218,091.32x = 1,680,923.10 × 674,228.16
  4. Step 4: Simplify right side
    1,218,091.32x = 1,133,325,688,814.50
  5. Step 5: Solve for x
    x = 1,133,325,688,814.50/1,218,091.32
  6. Step 6: Final answer
    x = 930,411.10

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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.