Home / 1,090,424.70-1,635,637.05-490,685.20

Finding the Fourth Proportional to 1,090,424.70, 1,635,637.05 and 490,685.20

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Solution

The fourth proportional to 1,090,424.70, 1,635,637.05 and 490,685.20 is: 736,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,424.70 : 1,635,637.05 = 490,685.20 : x
  2. Step 2: Convert to fraction form
    1,090,424.70/1,635,637.05 = 490,685.20/x
  3. Step 3: Cross multiply
    1,090,424.70x = 1,635,637.05 × 490,685.20
  4. Step 4: Simplify right side
    1,090,424.70x = 802,582,888,917.57
  5. Step 5: Solve for x
    x = 802,582,888,917.57/1,090,424.70
  6. Step 6: Final answer
    x = 736,027.80

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Double scale
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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.