Home / 1,036,686.68-1,555,030.02-438,323.48

Finding the Fourth Proportional to 1,036,686.68, 1,555,030.02 and 438,323.48

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Solution

The fourth proportional to 1,036,686.68, 1,555,030.02 and 438,323.48 is: 657,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,686.68 : 1,555,030.02 = 438,323.48 : x
  2. Step 2: Convert to fraction form
    1,036,686.68/1,555,030.02 = 438,323.48/x
  3. Step 3: Cross multiply
    1,036,686.68x = 1,555,030.02 × 438,323.48
  4. Step 4: Simplify right side
    1,036,686.68x = 681,606,162,095.72
  5. Step 5: Solve for x
    x = 681,606,162,095.72/1,036,686.68
  6. Step 6: Final answer
    x = 657,485.22

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Double scale
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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.