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Finding the Fourth Proportional to 545,404.89, 817,833.62 and 317,774.07

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Solution

The fourth proportional to 545,404.89, 817,833.62 and 317,774.07 is: 476,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,404.89 : 817,833.62 = 317,774.07 : x
  2. Step 2: Convert to fraction form
    545,404.89/817,833.62 = 317,774.07/x
  3. Step 3: Cross multiply
    545,404.89x = 817,833.62 × 317,774.07
  4. Step 4: Simplify right side
    545,404.89x = 259,886,316,421.36
  5. Step 5: Solve for x
    x = 259,886,316,421.36/545,404.89
  6. Step 6: Final answer
    x = 476,501.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.