Home / 790,722.64-1,186,156.88-258,246.44

Finding the Fourth Proportional to 790,722.64, 1,186,156.88 and 258,246.44

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Solution

The fourth proportional to 790,722.64, 1,186,156.88 and 258,246.44 is: 387,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,722.64 : 1,186,156.88 = 258,246.44 : x
  2. Step 2: Convert to fraction form
    790,722.64/1,186,156.88 = 258,246.44/x
  3. Step 3: Cross multiply
    790,722.64x = 1,186,156.88 × 258,246.44
  4. Step 4: Simplify right side
    790,722.64x = 306,320,791,541.51
  5. Step 5: Solve for x
    x = 306,320,791,541.51/790,722.64
  6. Step 6: Final answer
    x = 387,393.48

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1.5x scale

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.