Home / 1,289,439.03-1,779,390.54-716,464.47

Finding the Fourth Proportional to 1,289,439.03, 1,779,390.54 and 716,464.47

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Solution

The fourth proportional to 1,289,439.03, 1,779,390.54 and 716,464.47 is: 988,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,439.03 : 1,779,390.54 = 716,464.47 : x
  2. Step 2: Convert to fraction form
    1,289,439.03/1,779,390.54 = 716,464.47/x
  3. Step 3: Cross multiply
    1,289,439.03x = 1,779,390.54 × 716,464.47
  4. Step 4: Simplify right side
    1,289,439.03x = 1,274,870,100,164.11
  5. Step 5: Solve for x
    x = 1,274,870,100,164.11/1,289,439.03
  6. Step 6: Final answer
    x = 988,701.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.