Home / 780,526.78-1,077,459.03-474,701.34

Finding the Fourth Proportional to 780,526.78, 1,077,459.03 and 474,701.34

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Solution

The fourth proportional to 780,526.78, 1,077,459.03 and 474,701.34 is: 655,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,526.78 : 1,077,459.03 = 474,701.34 : x
  2. Step 2: Convert to fraction form
    780,526.78/1,077,459.03 = 474,701.34/x
  3. Step 3: Cross multiply
    780,526.78x = 1,077,459.03 × 474,701.34
  4. Step 4: Simplify right side
    780,526.78x = 511,471,245,336.10
  5. Step 5: Solve for x
    x = 511,471,245,336.10/780,526.78
  6. Step 6: Final answer
    x = 655,289.81

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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.