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Finding the Fourth Proportional to 556,995.78, 768,670.02 and 302,363.37

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Solution

The fourth proportional to 556,995.78, 768,670.02 and 302,363.37 is: 417,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,995.78 : 768,670.02 = 302,363.37 : x
  2. Step 2: Convert to fraction form
    556,995.78/768,670.02 = 302,363.37/x
  3. Step 3: Cross multiply
    556,995.78x = 768,670.02 × 302,363.37
  4. Step 4: Simplify right side
    556,995.78x = 232,417,657,665.17
  5. Step 5: Solve for x
    x = 232,417,657,665.17/556,995.78
  6. Step 6: Final answer
    x = 417,270.05

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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.