Home / 1,434,887.64-1,980,234.78-790,307.58

Finding the Fourth Proportional to 1,434,887.64, 1,980,234.78 and 790,307.58

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Solution

The fourth proportional to 1,434,887.64, 1,980,234.78 and 790,307.58 is: 1,090,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,887.64 : 1,980,234.78 = 790,307.58 : x
  2. Step 2: Convert to fraction form
    1,434,887.64/1,980,234.78 = 790,307.58/x
  3. Step 3: Cross multiply
    1,434,887.64x = 1,980,234.78 × 790,307.58
  4. Step 4: Simplify right side
    1,434,887.64x = 1,564,994,556,813.63
  5. Step 5: Solve for x
    x = 1,564,994,556,813.63/1,434,887.64
  6. Step 6: Final answer
    x = 1,090,673.94

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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.