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Finding the Fourth Proportional to 659,648.54, 910,316.72 and 357,842.54

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Solution

The fourth proportional to 659,648.54, 910,316.72 and 357,842.54 is: 493,823.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,648.54 : 910,316.72 = 357,842.54 : x
  2. Step 2: Convert to fraction form
    659,648.54/910,316.72 = 357,842.54/x
  3. Step 3: Cross multiply
    659,648.54x = 910,316.72 × 357,842.54
  4. Step 4: Simplify right side
    659,648.54x = 325,750,043,632.29
  5. Step 5: Solve for x
    x = 325,750,043,632.29/659,648.54
  6. Step 6: Final answer
    x = 493,823.64

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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.