Home / 858,780.76-1,185,154.44-476,807.50

Finding the Fourth Proportional to 858,780.76, 1,185,154.44 and 476,807.50

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Solution

The fourth proportional to 858,780.76, 1,185,154.44 and 476,807.50 is: 658,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,780.76 : 1,185,154.44 = 476,807.50 : x
  2. Step 2: Convert to fraction form
    858,780.76/1,185,154.44 = 476,807.50/x
  3. Step 3: Cross multiply
    858,780.76x = 1,185,154.44 × 476,807.50
  4. Step 4: Simplify right side
    858,780.76x = 565,090,525,650.30
  5. Step 5: Solve for x
    x = 565,090,525,650.30/858,780.76
  6. Step 6: Final answer
    x = 658,014.89

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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.