Home / 476,429.48-657,423.78-285,437.96

Finding the Fourth Proportional to 476,429.48, 657,423.78 and 285,437.96

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Solution

The fourth proportional to 476,429.48, 657,423.78 and 285,437.96 is: 393,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,429.48 : 657,423.78 = 285,437.96 : x
  2. Step 2: Convert to fraction form
    476,429.48/657,423.78 = 285,437.96/x
  3. Step 3: Cross multiply
    476,429.48x = 657,423.78 × 285,437.96
  4. Step 4: Simplify right side
    476,429.48x = 187,653,702,618.69
  5. Step 5: Solve for x
    x = 187,653,702,618.69/476,429.48
  6. Step 6: Final answer
    x = 393,875.09

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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.