Home / 816,140.81-1,125,924.95-509,685.16

Finding the Fourth Proportional to 816,140.81, 1,125,924.95 and 509,685.16

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Solution

The fourth proportional to 816,140.81, 1,125,924.95 and 509,685.16 is: 703,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,140.81 : 1,125,924.95 = 509,685.16 : x
  2. Step 2: Convert to fraction form
    816,140.81/1,125,924.95 = 509,685.16/x
  3. Step 3: Cross multiply
    816,140.81x = 1,125,924.95 × 509,685.16
  4. Step 4: Simplify right side
    816,140.81x = 573,867,230,110.69
  5. Step 5: Solve for x
    x = 573,867,230,110.69/816,140.81
  6. Step 6: Final answer
    x = 703,147.33

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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.