Home / 859,925.34-1,187,019.06-645,684.39

Finding the Fourth Proportional to 859,925.34, 1,187,019.06 and 645,684.39

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Solution

The fourth proportional to 859,925.34, 1,187,019.06 and 645,684.39 is: 891,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,925.34 : 1,187,019.06 = 645,684.39 : x
  2. Step 2: Convert to fraction form
    859,925.34/1,187,019.06 = 645,684.39/x
  3. Step 3: Cross multiply
    859,925.34x = 1,187,019.06 × 645,684.39
  4. Step 4: Simplify right side
    859,925.34x = 766,439,677,674.47
  5. Step 5: Solve for x
    x = 766,439,677,674.47/859,925.34
  6. Step 6: Final answer
    x = 891,286.30

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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.