Home / 898,709.38-1,240,225.83-490,803.81

Finding the Fourth Proportional to 898,709.38, 1,240,225.83 and 490,803.81

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Solution

The fourth proportional to 898,709.38, 1,240,225.83 and 490,803.81 is: 677,313.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,709.38 : 1,240,225.83 = 490,803.81 : x
  2. Step 2: Convert to fraction form
    898,709.38/1,240,225.83 = 490,803.81/x
  3. Step 3: Cross multiply
    898,709.38x = 1,240,225.83 × 490,803.81
  4. Step 4: Simplify right side
    898,709.38x = 608,707,557,973.57
  5. Step 5: Solve for x
    x = 608,707,557,973.57/898,709.38
  6. Step 6: Final answer
    x = 677,313.01

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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.