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Finding the Fourth Proportional to 418,835.34, 578,005.74 and 237,554.64

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Solution

The fourth proportional to 418,835.34, 578,005.74 and 237,554.64 is: 327,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,835.34 : 578,005.74 = 237,554.64 : x
  2. Step 2: Convert to fraction form
    418,835.34/578,005.74 = 237,554.64/x
  3. Step 3: Cross multiply
    418,835.34x = 578,005.74 × 237,554.64
  4. Step 4: Simplify right side
    418,835.34x = 137,307,945,483.63
  5. Step 5: Solve for x
    x = 137,307,945,483.63/418,835.34
  6. Step 6: Final answer
    x = 327,832.76

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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.