Home / 1,319,459.64-1,820,846.70-715,834.68

Finding the Fourth Proportional to 1,319,459.64, 1,820,846.70 and 715,834.68

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Solution

The fourth proportional to 1,319,459.64, 1,820,846.70 and 715,834.68 is: 987,847.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,459.64 : 1,820,846.70 = 715,834.68 : x
  2. Step 2: Convert to fraction form
    1,319,459.64/1,820,846.70 = 715,834.68/x
  3. Step 3: Cross multiply
    1,319,459.64x = 1,820,846.70 × 715,834.68
  4. Step 4: Simplify right side
    1,319,459.64x = 1,303,425,214,823.56
  5. Step 5: Solve for x
    x = 1,303,425,214,823.56/1,319,459.64
  6. Step 6: Final answer
    x = 987,847.73

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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.