Home / 815,573.77-1,125,900.88-509,820.23

Finding the Fourth Proportional to 815,573.77, 1,125,900.88 and 509,820.23

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Solution

The fourth proportional to 815,573.77, 1,125,900.88 and 509,820.23 is: 703,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,573.77 : 1,125,900.88 = 509,820.23 : x
  2. Step 2: Convert to fraction form
    815,573.77/1,125,900.88 = 509,820.23/x
  3. Step 3: Cross multiply
    815,573.77x = 1,125,900.88 × 509,820.23
  4. Step 4: Simplify right side
    815,573.77x = 574,007,047,139.00
  5. Step 5: Solve for x
    x = 574,007,047,139.00/815,573.77
  6. Step 6: Final answer
    x = 703,807.64

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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.