Home / 790,787.60-1,186,267.80-765,904.40

Finding the Fourth Proportional to 790,787.60, 1,186,267.80 and 765,904.40

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Solution

The fourth proportional to 790,787.60, 1,186,267.80 and 765,904.40 is: 1,148,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,787.60 : 1,186,267.80 = 765,904.40 : x
  2. Step 2: Convert to fraction form
    790,787.60/1,186,267.80 = 765,904.40/x
  3. Step 3: Cross multiply
    790,787.60x = 1,186,267.80 × 765,904.40
  4. Step 4: Simplify right side
    790,787.60x = 908,567,727,598.32
  5. Step 5: Solve for x
    x = 908,567,727,598.32/790,787.60
  6. Step 6: Final answer
    x = 1,148,940.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.