Home / 1,434,957.09-1,980,330.51-790,377.11

Finding the Fourth Proportional to 1,434,957.09, 1,980,330.51 and 790,377.11

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Solution

The fourth proportional to 1,434,957.09, 1,980,330.51 and 790,377.11 is: 1,090,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,957.09 : 1,980,330.51 = 790,377.11 : x
  2. Step 2: Convert to fraction form
    1,434,957.09/1,980,330.51 = 790,377.11/x
  3. Step 3: Cross multiply
    1,434,957.09x = 1,980,330.51 × 790,377.11
  4. Step 4: Simplify right side
    1,434,957.09x = 1,565,207,895,436.97
  5. Step 5: Solve for x
    x = 1,565,207,895,436.97/1,434,957.09
  6. Step 6: Final answer
    x = 1,090,769.83

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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.