Home / 983,049.08-1,356,829-643,320.50

Finding the Fourth Proportional to 983,049.08, 1,356,829 and 643,320.50

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Solution

The fourth proportional to 983,049.08, 1,356,829 and 643,320.50 is: 887,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,049.08 : 1,356,829 = 643,320.50 : x
  2. Step 2: Convert to fraction form
    983,049.08/1,356,829 = 643,320.50/x
  3. Step 3: Cross multiply
    983,049.08x = 1,356,829 × 643,320.50
  4. Step 4: Simplify right side
    983,049.08x = 872,875,910,694.50
  5. Step 5: Solve for x
    x = 872,875,910,694.50/983,049.08
  6. Step 6: Final answer
    x = 887,927.09

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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.