Home / 840,308.82-1,159,640.04-458,335.68

Finding the Fourth Proportional to 840,308.82, 1,159,640.04 and 458,335.68

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Solution

The fourth proportional to 840,308.82, 1,159,640.04 and 458,335.68 is: 632,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,308.82 : 1,159,640.04 = 458,335.68 : x
  2. Step 2: Convert to fraction form
    840,308.82/1,159,640.04 = 458,335.68/x
  3. Step 3: Cross multiply
    840,308.82x = 1,159,640.04 × 458,335.68
  4. Step 4: Simplify right side
    840,308.82x = 531,504,406,288.63
  5. Step 5: Solve for x
    x = 531,504,406,288.63/840,308.82
  6. Step 6: Final answer
    x = 632,510.80

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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.