Home / 1,313,565.72-1,812,719.90-709,953.72

Finding the Fourth Proportional to 1,313,565.72, 1,812,719.90 and 709,953.72

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Solution

The fourth proportional to 1,313,565.72, 1,812,719.90 and 709,953.72 is: 979,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,565.72 : 1,812,719.90 = 709,953.72 : x
  2. Step 2: Convert to fraction form
    1,313,565.72/1,812,719.90 = 709,953.72/x
  3. Step 3: Cross multiply
    1,313,565.72x = 1,812,719.90 × 709,953.72
  4. Step 4: Simplify right side
    1,313,565.72x = 1,286,947,232,773.26
  5. Step 5: Solve for x
    x = 1,286,947,232,773.26/1,313,565.72
  6. Step 6: Final answer
    x = 979,735.70

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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.