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Finding the Fourth Proportional to 565,144.32, 779,859.84 and 310,506.24

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Solution

The fourth proportional to 565,144.32, 779,859.84 and 310,506.24 is: 428,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,144.32 : 779,859.84 = 310,506.24 : x
  2. Step 2: Convert to fraction form
    565,144.32/779,859.84 = 310,506.24/x
  3. Step 3: Cross multiply
    565,144.32x = 779,859.84 × 310,506.24
  4. Step 4: Simplify right side
    565,144.32x = 242,151,346,645.40
  5. Step 5: Solve for x
    x = 242,151,346,645.40/565,144.32
  6. Step 6: Final answer
    x = 428,477.01

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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.