Home / 1,282,740.15-1,769,900.25-766,416.51

Finding the Fourth Proportional to 1,282,740.15, 1,769,900.25 and 766,416.51

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Solution

The fourth proportional to 1,282,740.15, 1,769,900.25 and 766,416.51 is: 1,057,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,740.15 : 1,769,900.25 = 766,416.51 : x
  2. Step 2: Convert to fraction form
    1,282,740.15/1,769,900.25 = 766,416.51/x
  3. Step 3: Cross multiply
    1,282,740.15x = 1,769,900.25 × 766,416.51
  4. Step 4: Simplify right side
    1,282,740.15x = 1,356,480,772,653.13
  5. Step 5: Solve for x
    x = 1,356,480,772,653.13/1,282,740.15
  6. Step 6: Final answer
    x = 1,057,486.80

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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.