Home / 561,431.04-774,776.81-306,782.22

Finding the Fourth Proportional to 561,431.04, 774,776.81 and 306,782.22

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Solution

The fourth proportional to 561,431.04, 774,776.81 and 306,782.22 is: 423,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,431.04 : 774,776.81 = 306,782.22 : x
  2. Step 2: Convert to fraction form
    561,431.04/774,776.81 = 306,782.22/x
  3. Step 3: Cross multiply
    561,431.04x = 774,776.81 × 306,782.22
  4. Step 4: Simplify right side
    561,431.04x = 237,687,749,776.32
  5. Step 5: Solve for x
    x = 237,687,749,776.32/561,431.04
  6. Step 6: Final answer
    x = 423,360.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.