Home / 1,385,809.70-2,077,159.35-787,057.70

Finding the Fourth Proportional to 1,385,809.70, 2,077,159.35 and 787,057.70

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Solution

The fourth proportional to 1,385,809.70, 2,077,159.35 and 787,057.70 is: 1,179,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,809.70 : 2,077,159.35 = 787,057.70 : x
  2. Step 2: Convert to fraction form
    1,385,809.70/2,077,159.35 = 787,057.70/x
  3. Step 3: Cross multiply
    1,385,809.70x = 2,077,159.35 × 787,057.70
  4. Step 4: Simplify right side
    1,385,809.70x = 1,634,844,260,544.50
  5. Step 5: Solve for x
    x = 1,634,844,260,544.50/1,385,809.70
  6. Step 6: Final answer
    x = 1,179,703.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.