Home / 738,647.10-1,107,314.55-486,048.60

Finding the Fourth Proportional to 738,647.10, 1,107,314.55 and 486,048.60

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Solution

The fourth proportional to 738,647.10, 1,107,314.55 and 486,048.60 is: 728,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,647.10 : 1,107,314.55 = 486,048.60 : x
  2. Step 2: Convert to fraction form
    738,647.10/1,107,314.55 = 486,048.60/x
  3. Step 3: Cross multiply
    738,647.10x = 1,107,314.55 × 486,048.60
  4. Step 4: Simplify right side
    738,647.10x = 538,208,686,787.13
  5. Step 5: Solve for x
    x = 538,208,686,787.13/738,647.10
  6. Step 6: Final answer
    x = 728,641.17

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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.