Home / 743,920.70-1,115,881.05-370,672.70

Finding the Fourth Proportional to 743,920.70, 1,115,881.05 and 370,672.70

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Solution

The fourth proportional to 743,920.70, 1,115,881.05 and 370,672.70 is: 556,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,920.70 : 1,115,881.05 = 370,672.70 : x
  2. Step 2: Convert to fraction form
    743,920.70/1,115,881.05 = 370,672.70/x
  3. Step 3: Cross multiply
    743,920.70x = 1,115,881.05 × 370,672.70
  4. Step 4: Simplify right side
    743,920.70x = 413,626,641,682.34
  5. Step 5: Solve for x
    x = 413,626,641,682.34/743,920.70
  6. Step 6: Final answer
    x = 556,009.05

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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.