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Finding the Fourth Proportional to 557,133.38, 768,844.05 and 302,484.59

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Solution

The fourth proportional to 557,133.38, 768,844.05 and 302,484.59 is: 417,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,133.38 : 768,844.05 = 302,484.59 : x
  2. Step 2: Convert to fraction form
    557,133.38/768,844.05 = 302,484.59/x
  3. Step 3: Cross multiply
    557,133.38x = 768,844.05 × 302,484.59
  4. Step 4: Simplify right side
    557,133.38x = 232,563,477,238.19
  5. Step 5: Solve for x
    x = 232,563,477,238.19/557,133.38
  6. Step 6: Final answer
    x = 417,428.73

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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.