Home / 989,629.48-1,365,682.98-536,910.76

Finding the Fourth Proportional to 989,629.48, 1,365,682.98 and 536,910.76

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Solution

The fourth proportional to 989,629.48, 1,365,682.98 and 536,910.76 is: 740,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,629.48 : 1,365,682.98 = 536,910.76 : x
  2. Step 2: Convert to fraction form
    989,629.48/1,365,682.98 = 536,910.76/x
  3. Step 3: Cross multiply
    989,629.48x = 1,365,682.98 × 536,910.76
  4. Step 4: Simplify right side
    989,629.48x = 733,249,886,710.87
  5. Step 5: Solve for x
    x = 733,249,886,710.87/989,629.48
  6. Step 6: Final answer
    x = 740,933.76

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1.5x scale

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.