Home / 808,423.80-1,213,634.10-508,903.80

Finding the Fourth Proportional to 808,423.80, 1,213,634.10 and 508,903.80

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Solution

The fourth proportional to 808,423.80, 1,213,634.10 and 508,903.80 is: 763,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,423.80 : 1,213,634.10 = 508,903.80 : x
  2. Step 2: Convert to fraction form
    808,423.80/1,213,634.10 = 508,903.80/x
  3. Step 3: Cross multiply
    808,423.80x = 1,213,634.10 × 508,903.80
  4. Step 4: Simplify right side
    808,423.80x = 617,623,005,299.58
  5. Step 5: Solve for x
    x = 617,623,005,299.58/808,423.80
  6. Step 6: Final answer
    x = 763,984.19

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1.5x scale

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.