Home / 1,090,426.20-1,635,639.30-490,686.71

Finding the Fourth Proportional to 1,090,426.20, 1,635,639.30 and 490,686.71

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Solution

The fourth proportional to 1,090,426.20, 1,635,639.30 and 490,686.71 is: 736,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,426.20 : 1,635,639.30 = 490,686.71 : x
  2. Step 2: Convert to fraction form
    1,090,426.20/1,635,639.30 = 490,686.71/x
  3. Step 3: Cross multiply
    1,090,426.20x = 1,635,639.30 × 490,686.71
  4. Step 4: Simplify right side
    1,090,426.20x = 802,586,458,685.51
  5. Step 5: Solve for x
    x = 802,586,458,685.51/1,090,426.20
  6. Step 6: Final answer
    x = 736,030.06

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Double scale
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Similar ratio
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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.