Home / 744,612.51-1,116,734.23-212,138.15

Finding the Fourth Proportional to 744,612.51, 1,116,734.23 and 212,138.15

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Solution

The fourth proportional to 744,612.51, 1,116,734.23 and 212,138.15 is: 318,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,612.51 : 1,116,734.23 = 212,138.15 : x
  2. Step 2: Convert to fraction form
    744,612.51/1,116,734.23 = 212,138.15/x
  3. Step 3: Cross multiply
    744,612.51x = 1,116,734.23 × 212,138.15
  4. Step 4: Simplify right side
    744,612.51x = 236,901,936,916.06
  5. Step 5: Solve for x
    x = 236,901,936,916.06/744,612.51
  6. Step 6: Final answer
    x = 318,154.66

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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.