Home / 815,575.77-1,125,903.64-509,822.23

Finding the Fourth Proportional to 815,575.77, 1,125,903.64 and 509,822.23

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Solution

The fourth proportional to 815,575.77, 1,125,903.64 and 509,822.23 is: 703,810.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,575.77 : 1,125,903.64 = 509,822.23 : x
  2. Step 2: Convert to fraction form
    815,575.77/1,125,903.64 = 509,822.23/x
  3. Step 3: Cross multiply
    815,575.77x = 1,125,903.64 × 509,822.23
  4. Step 4: Simplify right side
    815,575.77x = 574,010,704,509.92
  5. Step 5: Solve for x
    x = 574,010,704,509.92/815,575.77
  6. Step 6: Final answer
    x = 703,810.39

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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.