Home / 743,419.07-1,115,124.95-210,941.06

Finding the Fourth Proportional to 743,419.07, 1,115,124.95 and 210,941.06

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Solution

The fourth proportional to 743,419.07, 1,115,124.95 and 210,941.06 is: 316,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,419.07 : 1,115,124.95 = 210,941.06 : x
  2. Step 2: Convert to fraction form
    743,419.07/1,115,124.95 = 210,941.06/x
  3. Step 3: Cross multiply
    743,419.07x = 1,115,124.95 × 210,941.06
  4. Step 4: Simplify right side
    743,419.07x = 235,225,638,985.45
  5. Step 5: Solve for x
    x = 235,225,638,985.45/743,419.07
  6. Step 6: Final answer
    x = 316,410.56

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Double scale
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Similar ratio
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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.