Home / 1,011,629.76-1,516,277.28-380,139.84

Finding the Fourth Proportional to 1,011,629.76, 1,516,277.28 and 380,139.84

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Solution

The fourth proportional to 1,011,629.76, 1,516,277.28 and 380,139.84 is: 569,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,629.76 : 1,516,277.28 = 380,139.84 : x
  2. Step 2: Convert to fraction form
    1,011,629.76/1,516,277.28 = 380,139.84/x
  3. Step 3: Cross multiply
    1,011,629.76x = 1,516,277.28 × 380,139.84
  4. Step 4: Simplify right side
    1,011,629.76x = 576,397,402,614.84
  5. Step 5: Solve for x
    x = 576,397,402,614.84/1,011,629.76
  6. Step 6: Final answer
    x = 569,771.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.