Home / 1,225,193.18-1,690,518.83-715,797.14

Finding the Fourth Proportional to 1,225,193.18, 1,690,518.83 and 715,797.14

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Solution

The fourth proportional to 1,225,193.18, 1,690,518.83 and 715,797.14 is: 987,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,193.18 : 1,690,518.83 = 715,797.14 : x
  2. Step 2: Convert to fraction form
    1,225,193.18/1,690,518.83 = 715,797.14/x
  3. Step 3: Cross multiply
    1,225,193.18x = 1,690,518.83 × 715,797.14
  4. Step 4: Simplify right side
    1,225,193.18x = 1,210,068,531,598.57
  5. Step 5: Solve for x
    x = 1,210,068,531,598.57/1,225,193.18
  6. Step 6: Final answer
    x = 987,655.30

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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.