Home / 1,036,752.30-1,555,128.45-438,389.10

Finding the Fourth Proportional to 1,036,752.30, 1,555,128.45 and 438,389.10

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Solution

The fourth proportional to 1,036,752.30, 1,555,128.45 and 438,389.10 is: 657,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,752.30 : 1,555,128.45 = 438,389.10 : x
  2. Step 2: Convert to fraction form
    1,036,752.30/1,555,128.45 = 438,389.10/x
  3. Step 3: Cross multiply
    1,036,752.30x = 1,555,128.45 × 438,389.10
  4. Step 4: Simplify right side
    1,036,752.30x = 681,751,361,579.90
  5. Step 5: Solve for x
    x = 681,751,361,579.90/1,036,752.30
  6. Step 6: Final answer
    x = 657,583.65

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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.