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Finding the Fourth Proportional to 543,421.36, 749,886.79 and 301,703.87

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Solution

The fourth proportional to 543,421.36, 749,886.79 and 301,703.87 is: 416,332.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,421.36 : 749,886.79 = 301,703.87 : x
  2. Step 2: Convert to fraction form
    543,421.36/749,886.79 = 301,703.87/x
  3. Step 3: Cross multiply
    543,421.36x = 749,886.79 × 301,703.87
  4. Step 4: Simplify right side
    543,421.36x = 226,243,745,096.36
  5. Step 5: Solve for x
    x = 226,243,745,096.36/543,421.36
  6. Step 6: Final answer
    x = 416,332.08

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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.