Home / 756,945.20-1,134,518.70-401,776.40

Finding the Fourth Proportional to 756,945.20, 1,134,518.70 and 401,776.40

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Solution

The fourth proportional to 756,945.20, 1,134,518.70 and 401,776.40 is: 602,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,945.20 : 1,134,518.70 = 401,776.40 : x
  2. Step 2: Convert to fraction form
    756,945.20/1,134,518.70 = 401,776.40/x
  3. Step 3: Cross multiply
    756,945.20x = 1,134,518.70 × 401,776.40
  4. Step 4: Simplify right side
    756,945.20x = 455,822,839,018.68
  5. Step 5: Solve for x
    x = 455,822,839,018.68/756,945.20
  6. Step 6: Final answer
    x = 602,187.37

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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.