Home / 859,949.46-1,187,052.30-645,708.51

Finding the Fourth Proportional to 859,949.46, 1,187,052.30 and 645,708.51

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Solution

The fourth proportional to 859,949.46, 1,187,052.30 and 645,708.51 is: 891,319.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,949.46 : 1,187,052.30 = 645,708.51 : x
  2. Step 2: Convert to fraction form
    859,949.46/1,187,052.30 = 645,708.51/x
  3. Step 3: Cross multiply
    859,949.46x = 1,187,052.30 × 645,708.51
  4. Step 4: Simplify right side
    859,949.46x = 766,489,771,925.07
  5. Step 5: Solve for x
    x = 766,489,771,925.07/859,949.46
  6. Step 6: Final answer
    x = 891,319.56

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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.