Home / 922,749.80-1,384,124.70-390,093.80

Finding the Fourth Proportional to 922,749.80, 1,384,124.70 and 390,093.80

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Solution

The fourth proportional to 922,749.80, 1,384,124.70 and 390,093.80 is: 585,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,749.80 : 1,384,124.70 = 390,093.80 : x
  2. Step 2: Convert to fraction form
    922,749.80/1,384,124.70 = 390,093.80/x
  3. Step 3: Cross multiply
    922,749.80x = 1,384,124.70 × 390,093.80
  4. Step 4: Simplify right side
    922,749.80x = 539,938,463,896.86
  5. Step 5: Solve for x
    x = 539,938,463,896.86/922,749.80
  6. Step 6: Final answer
    x = 585,140.70

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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.