Home / 1,319,854.72-1,821,400.68-716,242.72

Finding the Fourth Proportional to 1,319,854.72, 1,821,400.68 and 716,242.72

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Solution

The fourth proportional to 1,319,854.72, 1,821,400.68 and 716,242.72 is: 988,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,854.72 : 1,821,400.68 = 716,242.72 : x
  2. Step 2: Convert to fraction form
    1,319,854.72/1,821,400.68 = 716,242.72/x
  3. Step 3: Cross multiply
    1,319,854.72x = 1,821,400.68 × 716,242.72
  4. Step 4: Simplify right side
    1,319,854.72x = 1,304,564,977,253.05
  5. Step 5: Solve for x
    x = 1,304,564,977,253.05/1,319,854.72
  6. Step 6: Final answer
    x = 988,415.59

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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.