Home / 790,412.57-1,185,807.48-257,934.57

Finding the Fourth Proportional to 790,412.57, 1,185,807.48 and 257,934.57

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Solution

The fourth proportional to 790,412.57, 1,185,807.48 and 257,934.57 is: 386,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,412.57 : 1,185,807.48 = 257,934.57 : x
  2. Step 2: Convert to fraction form
    790,412.57/1,185,807.48 = 257,934.57/x
  3. Step 3: Cross multiply
    790,412.57x = 1,185,807.48 × 257,934.57
  4. Step 4: Simplify right side
    790,412.57x = 305,860,742,456.58
  5. Step 5: Solve for x
    x = 305,860,742,456.58/790,412.57
  6. Step 6: Final answer
    x = 386,963.41

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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.