Home / 1,191,021.79-1,643,425.05-707,574.51

Finding the Fourth Proportional to 1,191,021.79, 1,643,425.05 and 707,574.51

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Solution

The fourth proportional to 1,191,021.79, 1,643,425.05 and 707,574.51 is: 976,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,021.79 : 1,643,425.05 = 707,574.51 : x
  2. Step 2: Convert to fraction form
    1,191,021.79/1,643,425.05 = 707,574.51/x
  3. Step 3: Cross multiply
    1,191,021.79x = 1,643,425.05 × 707,574.51
  4. Step 4: Simplify right side
    1,191,021.79x = 1,162,845,674,475.48
  5. Step 5: Solve for x
    x = 1,162,845,674,475.48/1,191,021.79
  6. Step 6: Final answer
    x = 976,342.91

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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.