Home / 1,243,725.01-1,865,913.33-390,762.20

Finding the Fourth Proportional to 1,243,725.01, 1,865,913.33 and 390,762.20

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Solution

The fourth proportional to 1,243,725.01, 1,865,913.33 and 390,762.20 is: 586,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,725.01 : 1,865,913.33 = 390,762.20 : x
  2. Step 2: Convert to fraction form
    1,243,725.01/1,865,913.33 = 390,762.20/x
  3. Step 3: Cross multiply
    1,243,725.01x = 1,865,913.33 × 390,762.20
  4. Step 4: Simplify right side
    1,243,725.01x = 729,128,397,840.13
  5. Step 5: Solve for x
    x = 729,128,397,840.13/1,243,725.01
  6. Step 6: Final answer
    x = 586,245.67

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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.