Home / 1,036,686.30-1,555,029.45-438,323.10

Finding the Fourth Proportional to 1,036,686.30, 1,555,029.45 and 438,323.10

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Solution

The fourth proportional to 1,036,686.30, 1,555,029.45 and 438,323.10 is: 657,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,686.30 : 1,555,029.45 = 438,323.10 : x
  2. Step 2: Convert to fraction form
    1,036,686.30/1,555,029.45 = 438,323.10/x
  3. Step 3: Cross multiply
    1,036,686.30x = 1,555,029.45 × 438,323.10
  4. Step 4: Simplify right side
    1,036,686.30x = 681,605,329,115.30
  5. Step 5: Solve for x
    x = 681,605,329,115.30/1,036,686.30
  6. Step 6: Final answer
    x = 657,484.65

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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.