Home / 1,289,572.32-1,779,528.12-716,578.32

Finding the Fourth Proportional to 1,289,572.32, 1,779,528.12 and 716,578.32

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Solution

The fourth proportional to 1,289,572.32, 1,779,528.12 and 716,578.32 is: 988,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,572.32 : 1,779,528.12 = 716,578.32 : x
  2. Step 2: Convert to fraction form
    1,289,572.32/1,779,528.12 = 716,578.32/x
  3. Step 3: Cross multiply
    1,289,572.32x = 1,779,528.12 × 716,578.32
  4. Step 4: Simplify right side
    1,289,572.32x = 1,275,171,270,622.36
  5. Step 5: Solve for x
    x = 1,275,171,270,622.36/1,289,572.32
  6. Step 6: Final answer
    x = 988,832.69

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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.