Home / 743,159.85-1,114,466.35-256,718.25

Finding the Fourth Proportional to 743,159.85, 1,114,466.35 and 256,718.25

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Solution

The fourth proportional to 743,159.85, 1,114,466.35 and 256,718.25 is: 384,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,159.85 : 1,114,466.35 = 256,718.25 : x
  2. Step 2: Convert to fraction form
    743,159.85/1,114,466.35 = 256,718.25/x
  3. Step 3: Cross multiply
    743,159.85x = 1,114,466.35 × 256,718.25
  4. Step 4: Simplify right side
    743,159.85x = 286,103,845,483.56
  5. Step 5: Solve for x
    x = 286,103,845,483.56/743,159.85
  6. Step 6: Final answer
    x = 384,982.91

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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.