Home / 746,980.50-1,030,869.54-420,395.52

Finding the Fourth Proportional to 746,980.50, 1,030,869.54 and 420,395.52

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Solution

The fourth proportional to 746,980.50, 1,030,869.54 and 420,395.52 is: 580,166.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,980.50 : 1,030,869.54 = 420,395.52 : x
  2. Step 2: Convert to fraction form
    746,980.50/1,030,869.54 = 420,395.52/x
  3. Step 3: Cross multiply
    746,980.50x = 1,030,869.54 × 420,395.52
  4. Step 4: Simplify right side
    746,980.50x = 433,372,936,320.46
  5. Step 5: Solve for x
    x = 433,372,936,320.46/746,980.50
  6. Step 6: Final answer
    x = 580,166.33

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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.