Home / 816,584.20-1,225,125.16-417,505.16

Finding the Fourth Proportional to 816,584.20, 1,225,125.16 and 417,505.16

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Solution

The fourth proportional to 816,584.20, 1,225,125.16 and 417,505.16 is: 626,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,584.20 : 1,225,125.16 = 417,505.16 : x
  2. Step 2: Convert to fraction form
    816,584.20/1,225,125.16 = 417,505.16/x
  3. Step 3: Cross multiply
    816,584.20x = 1,225,125.16 × 417,505.16
  4. Step 4: Simplify right side
    816,584.20x = 511,496,075,945.83
  5. Step 5: Solve for x
    x = 511,496,075,945.83/816,584.20
  6. Step 6: Final answer
    x = 626,384.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.