Home / 1,116,438.90-1,674,139.95-485,027.70

Finding the Fourth Proportional to 1,116,438.90, 1,674,139.95 and 485,027.70

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Solution

The fourth proportional to 1,116,438.90, 1,674,139.95 and 485,027.70 is: 727,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,438.90 : 1,674,139.95 = 485,027.70 : x
  2. Step 2: Convert to fraction form
    1,116,438.90/1,674,139.95 = 485,027.70/x
  3. Step 3: Cross multiply
    1,116,438.90x = 1,674,139.95 × 485,027.70
  4. Step 4: Simplify right side
    1,116,438.90x = 812,004,249,426.62
  5. Step 5: Solve for x
    x = 812,004,249,426.62/1,116,438.90
  6. Step 6: Final answer
    x = 727,316.34

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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.