Home / 840,314.61-1,159,649.91-458,355.06

Finding the Fourth Proportional to 840,314.61, 1,159,649.91 and 458,355.06

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Solution

The fourth proportional to 840,314.61, 1,159,649.91 and 458,355.06 is: 632,538.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,314.61 : 1,159,649.91 = 458,355.06 : x
  2. Step 2: Convert to fraction form
    840,314.61/1,159,649.91 = 458,355.06/x
  3. Step 3: Cross multiply
    840,314.61x = 1,159,649.91 × 458,355.06
  4. Step 4: Simplify right side
    840,314.61x = 531,531,404,077.05
  5. Step 5: Solve for x
    x = 531,531,404,077.05/840,314.61
  6. Step 6: Final answer
    x = 632,538.57

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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.