Home / 862,780.42-1,190,627.29-470,304.77

Finding the Fourth Proportional to 862,780.42, 1,190,627.29 and 470,304.77

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Solution

The fourth proportional to 862,780.42, 1,190,627.29 and 470,304.77 is: 649,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,780.42 : 1,190,627.29 = 470,304.77 : x
  2. Step 2: Convert to fraction form
    862,780.42/1,190,627.29 = 470,304.77/x
  3. Step 3: Cross multiply
    862,780.42x = 1,190,627.29 × 470,304.77
  4. Step 4: Simplify right side
    862,780.42x = 559,957,695,814.37
  5. Step 5: Solve for x
    x = 559,957,695,814.37/862,780.42
  6. Step 6: Final answer
    x = 649,015.30

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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.