Home / 1,190,628.40-1,643,020.05-707,180.71

Finding the Fourth Proportional to 1,190,628.40, 1,643,020.05 and 707,180.71

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Solution

The fourth proportional to 1,190,628.40, 1,643,020.05 and 707,180.71 is: 975,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,628.40 : 1,643,020.05 = 707,180.71 : x
  2. Step 2: Convert to fraction form
    1,190,628.40/1,643,020.05 = 707,180.71/x
  3. Step 3: Cross multiply
    1,190,628.40x = 1,643,020.05 × 707,180.71
  4. Step 4: Simplify right side
    1,190,628.40x = 1,161,912,085,503.24
  5. Step 5: Solve for x
    x = 1,161,912,085,503.24/1,190,628.40
  6. Step 6: Final answer
    x = 975,881.38

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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.