Home / 772,769.79-1,065,190.58-609,159.69

Finding the Fourth Proportional to 772,769.79, 1,065,190.58 and 609,159.69

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Solution

The fourth proportional to 772,769.79, 1,065,190.58 and 609,159.69 is: 839,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,769.79 : 1,065,190.58 = 609,159.69 : x
  2. Step 2: Convert to fraction form
    772,769.79/1,065,190.58 = 609,159.69/x
  3. Step 3: Cross multiply
    772,769.79x = 1,065,190.58 × 609,159.69
  4. Step 4: Simplify right side
    772,769.79x = 648,871,160,457.92
  5. Step 5: Solve for x
    x = 648,871,160,457.92/772,769.79
  6. Step 6: Final answer
    x = 839,669.42

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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.