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Finding the Fourth Proportional to 557,005.47, 768,666.89 and 302,356.67

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Solution

The fourth proportional to 557,005.47, 768,666.89 and 302,356.67 is: 417,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,005.47 : 768,666.89 = 302,356.67 : x
  2. Step 2: Convert to fraction form
    557,005.47/768,666.89 = 302,356.67/x
  3. Step 3: Cross multiply
    557,005.47x = 768,666.89 × 302,356.67
  4. Step 4: Simplify right side
    557,005.47x = 232,411,555,844.54
  5. Step 5: Solve for x
    x = 232,411,555,844.54/557,005.47
  6. Step 6: Final answer
    x = 417,251.84

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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.