Home / 1,200,157.74-1,800,302.76-358,775.10

Finding the Fourth Proportional to 1,200,157.74, 1,800,302.76 and 358,775.10

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Solution

The fourth proportional to 1,200,157.74, 1,800,302.76 and 358,775.10 is: 538,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,157.74 : 1,800,302.76 = 358,775.10 : x
  2. Step 2: Convert to fraction form
    1,200,157.74/1,800,302.76 = 358,775.10/x
  3. Step 3: Cross multiply
    1,200,157.74x = 1,800,302.76 × 358,775.10
  4. Step 4: Simplify right side
    1,200,157.74x = 645,903,802,749.28
  5. Step 5: Solve for x
    x = 645,903,802,749.28/1,200,157.74
  6. Step 6: Final answer
    x = 538,182.42

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1.5x scale

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.