Home / 746,280.06-1,029,866.86-423,990.72

Finding the Fourth Proportional to 746,280.06, 1,029,866.86 and 423,990.72

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Solution

The fourth proportional to 746,280.06, 1,029,866.86 and 423,990.72 is: 585,107.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,280.06 : 1,029,866.86 = 423,990.72 : x
  2. Step 2: Convert to fraction form
    746,280.06/1,029,866.86 = 423,990.72/x
  3. Step 3: Cross multiply
    746,280.06x = 1,029,866.86 × 423,990.72
  4. Step 4: Simplify right side
    746,280.06x = 436,653,986,326.21
  5. Step 5: Solve for x
    x = 436,653,986,326.21/746,280.06
  6. Step 6: Final answer
    x = 585,107.40

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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.