Home / 746,280-1,029,147.12-501,815.52

Finding the Fourth Proportional to 746,280, 1,029,147.12 and 501,815.52

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Solution

The fourth proportional to 746,280, 1,029,147.12 and 501,815.52 is: 692,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,280 : 1,029,147.12 = 501,815.52 : x
  2. Step 2: Convert to fraction form
    746,280/1,029,147.12 = 501,815.52/x
  3. Step 3: Cross multiply
    746,280x = 1,029,147.12 × 501,815.52
  4. Step 4: Simplify right side
    746,280x = 516,441,997,179.30
  5. Step 5: Solve for x
    x = 516,441,997,179.30/746,280
  6. Step 6: Final answer
    x = 692,021.76

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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.