Home / 808,835.80-1,214,252.10-509,315.80

Finding the Fourth Proportional to 808,835.80, 1,214,252.10 and 509,315.80

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Solution

The fourth proportional to 808,835.80, 1,214,252.10 and 509,315.80 is: 764,602.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,835.80 : 1,214,252.10 = 509,315.80 : x
  2. Step 2: Convert to fraction form
    808,835.80/1,214,252.10 = 509,315.80/x
  3. Step 3: Cross multiply
    808,835.80x = 1,214,252.10 × 509,315.80
  4. Step 4: Simplify right side
    808,835.80x = 618,437,779,713.18
  5. Step 5: Solve for x
    x = 618,437,779,713.18/808,835.80
  6. Step 6: Final answer
    x = 764,602.38

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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.