Home / 891,131.40-1,336,684.95-292,112.10

Finding the Fourth Proportional to 891,131.40, 1,336,684.95 and 292,112.10

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Solution

The fourth proportional to 891,131.40, 1,336,684.95 and 292,112.10 is: 438,164.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,131.40 : 1,336,684.95 = 292,112.10 : x
  2. Step 2: Convert to fraction form
    891,131.40/1,336,684.95 = 292,112.10/x
  3. Step 3: Cross multiply
    891,131.40x = 1,336,684.95 × 292,112.10
  4. Step 4: Simplify right side
    891,131.40x = 390,461,847,782.90
  5. Step 5: Solve for x
    x = 390,461,847,782.90/891,131.40
  6. Step 6: Final answer
    x = 438,164.17

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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.