Home / 869,113.20-1,303,669.80-629,612.40

Finding the Fourth Proportional to 869,113.20, 1,303,669.80 and 629,612.40

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Solution

The fourth proportional to 869,113.20, 1,303,669.80 and 629,612.40 is: 944,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.20 : 1,303,669.80 = 629,612.40 : x
  2. Step 2: Convert to fraction form
    869,113.20/1,303,669.80 = 629,612.40/x
  3. Step 3: Cross multiply
    869,113.20x = 1,303,669.80 × 629,612.40
  4. Step 4: Simplify right side
    869,113.20x = 820,806,671,585.52
  5. Step 5: Solve for x
    x = 820,806,671,585.52/869,113.20
  6. Step 6: Final answer
    x = 944,418.60

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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.