Home / 862,047.07-1,189,539.80-480,109.39

Finding the Fourth Proportional to 862,047.07, 1,189,539.80 and 480,109.39

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Solution

The fourth proportional to 862,047.07, 1,189,539.80 and 480,109.39 is: 662,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,047.07 : 1,189,539.80 = 480,109.39 : x
  2. Step 2: Convert to fraction form
    862,047.07/1,189,539.80 = 480,109.39/x
  3. Step 3: Cross multiply
    862,047.07x = 1,189,539.80 × 480,109.39
  4. Step 4: Simplify right side
    862,047.07x = 571,109,227,758.72
  5. Step 5: Solve for x
    x = 571,109,227,758.72/862,047.07
  6. Step 6: Final answer
    x = 662,503.53

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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.