Home / 1,434,974.71-1,980,264.89-790,394.89

Finding the Fourth Proportional to 1,434,974.71, 1,980,264.89 and 790,394.89

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Solution

The fourth proportional to 1,434,974.71, 1,980,264.89 and 790,394.89 is: 1,090,744.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,974.71 : 1,980,264.89 = 790,394.89 : x
  2. Step 2: Convert to fraction form
    1,434,974.71/1,980,264.89 = 790,394.89/x
  3. Step 3: Cross multiply
    1,434,974.71x = 1,980,264.89 × 790,394.89
  4. Step 4: Simplify right side
    1,434,974.71x = 1,565,191,249,902.41
  5. Step 5: Solve for x
    x = 1,565,191,249,902.41/1,434,974.71
  6. Step 6: Final answer
    x = 1,090,744.83

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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.