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Finding the Fourth Proportional to 556,890.84, 768,509.67 and 302,242.03

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Solution

The fourth proportional to 556,890.84, 768,509.67 and 302,242.03 is: 417,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,890.84 : 768,509.67 = 302,242.03 : x
  2. Step 2: Convert to fraction form
    556,890.84/768,509.67 = 302,242.03/x
  3. Step 3: Cross multiply
    556,890.84x = 768,509.67 × 302,242.03
  4. Step 4: Simplify right side
    556,890.84x = 232,275,918,892.88
  5. Step 5: Solve for x
    x = 232,275,918,892.88/556,890.84
  6. Step 6: Final answer
    x = 417,094.17

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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.