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Finding the Fourth Proportional to 556,809.17, 768,392.78 and 302,160.36

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Solution

The fourth proportional to 556,809.17, 768,392.78 and 302,160.36 is: 416,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,809.17 : 768,392.78 = 302,160.36 : x
  2. Step 2: Convert to fraction form
    556,809.17/768,392.78 = 302,160.36/x
  3. Step 3: Cross multiply
    556,809.17x = 768,392.78 × 302,160.36
  4. Step 4: Simplify right side
    556,809.17x = 232,177,837,515.40
  5. Step 5: Solve for x
    x = 232,177,837,515.40/556,809.17
  6. Step 6: Final answer
    x = 416,979.20

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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.