Home / 1,457,390.75-2,011,202.80-812,852.69

Finding the Fourth Proportional to 1,457,390.75, 2,011,202.80 and 812,852.69

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Solution

The fourth proportional to 1,457,390.75, 2,011,202.80 and 812,852.69 is: 1,121,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,390.75 : 2,011,202.80 = 812,852.69 : x
  2. Step 2: Convert to fraction form
    1,457,390.75/2,011,202.80 = 812,852.69/x
  3. Step 3: Cross multiply
    1,457,390.75x = 2,011,202.80 × 812,852.69
  4. Step 4: Simplify right side
    1,457,390.75x = 1,634,811,594,027.39
  5. Step 5: Solve for x
    x = 1,634,811,594,027.39/1,457,390.75
  6. Step 6: Final answer
    x = 1,121,738.70

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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.