Home / 743,109.04-1,114,312.43-287,913.52

Finding the Fourth Proportional to 743,109.04, 1,114,312.43 and 287,913.52

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Solution

The fourth proportional to 743,109.04, 1,114,312.43 and 287,913.52 is: 431,734.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,109.04 : 1,114,312.43 = 287,913.52 : x
  2. Step 2: Convert to fraction form
    743,109.04/1,114,312.43 = 287,913.52/x
  3. Step 3: Cross multiply
    743,109.04x = 1,114,312.43 × 287,913.52
  4. Step 4: Simplify right side
    743,109.04x = 320,825,612,661.49
  5. Step 5: Solve for x
    x = 320,825,612,661.49/743,109.04
  6. Step 6: Final answer
    x = 431,734.24

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Double scale
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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.