Home / 1,401,795.55-2,102,663.14-390,890.57

Finding the Fourth Proportional to 1,401,795.55, 2,102,663.14 and 390,890.57

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Solution

The fourth proportional to 1,401,795.55, 2,102,663.14 and 390,890.57 is: 586,327.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,795.55 : 2,102,663.14 = 390,890.57 : x
  2. Step 2: Convert to fraction form
    1,401,795.55/2,102,663.14 = 390,890.57/x
  3. Step 3: Cross multiply
    1,401,795.55x = 2,102,663.14 × 390,890.57
  4. Step 4: Simplify right side
    1,401,795.55x = 821,911,189,384.84
  5. Step 5: Solve for x
    x = 821,911,189,384.84/1,401,795.55
  6. Step 6: Final answer
    x = 586,327.43

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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.