Home / 581,419.16-802,130.66-428,823.64

Finding the Fourth Proportional to 581,419.16, 802,130.66 and 428,823.64

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Solution

The fourth proportional to 581,419.16, 802,130.66 and 428,823.64 is: 591,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,419.16 : 802,130.66 = 428,823.64 : x
  2. Step 2: Convert to fraction form
    581,419.16/802,130.66 = 428,823.64/x
  3. Step 3: Cross multiply
    581,419.16x = 802,130.66 × 428,823.64
  4. Step 4: Simplify right side
    581,419.16x = 343,972,589,376.80
  5. Step 5: Solve for x
    x = 343,972,589,376.80/581,419.16
  6. Step 6: Final answer
    x = 591,608.62

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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.