Home / 898,554.30-1,240,055.55-490,694.10

Finding the Fourth Proportional to 898,554.30, 1,240,055.55 and 490,694.10

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Solution

The fourth proportional to 898,554.30, 1,240,055.55 and 490,694.10 is: 677,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,554.30 : 1,240,055.55 = 490,694.10 : x
  2. Step 2: Convert to fraction form
    898,554.30/1,240,055.55 = 490,694.10/x
  3. Step 3: Cross multiply
    898,554.30x = 1,240,055.55 × 490,694.10
  4. Step 4: Simplify right side
    898,554.30x = 608,487,942,057.26
  5. Step 5: Solve for x
    x = 608,487,942,057.26/898,554.30
  6. Step 6: Final answer
    x = 677,185.50

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Double scale
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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.