Home / 1,125,389.99-1,688,401.13-451,944.23

Finding the Fourth Proportional to 1,125,389.99, 1,688,401.13 and 451,944.23

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Solution

The fourth proportional to 1,125,389.99, 1,688,401.13 and 451,944.23 is: 678,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,389.99 : 1,688,401.13 = 451,944.23 : x
  2. Step 2: Convert to fraction form
    1,125,389.99/1,688,401.13 = 451,944.23/x
  3. Step 3: Cross multiply
    1,125,389.99x = 1,688,401.13 × 451,944.23
  4. Step 4: Simplify right side
    1,125,389.99x = 763,063,155,986.42
  5. Step 5: Solve for x
    x = 763,063,155,986.42/1,125,389.99
  6. Step 6: Final answer
    x = 678,043.31

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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.