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Finding the Fourth Proportional to 473,778.72, 653,814.88 and 258,918.75

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Solution

The fourth proportional to 473,778.72, 653,814.88 and 258,918.75 is: 357,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,778.72 : 653,814.88 = 258,918.75 : x
  2. Step 2: Convert to fraction form
    473,778.72/653,814.88 = 258,918.75/x
  3. Step 3: Cross multiply
    473,778.72x = 653,814.88 × 258,918.75
  4. Step 4: Simplify right side
    473,778.72x = 169,284,932,039.61
  5. Step 5: Solve for x
    x = 169,284,932,039.61/473,778.72
  6. Step 6: Final answer
    x = 357,308.01

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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.