Home / 781,109.34-1,077,880.05-436,885.62

Finding the Fourth Proportional to 781,109.34, 1,077,880.05 and 436,885.62

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Solution

The fourth proportional to 781,109.34, 1,077,880.05 and 436,885.62 is: 602,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,109.34 : 1,077,880.05 = 436,885.62 : x
  2. Step 2: Convert to fraction form
    781,109.34/1,077,880.05 = 436,885.62/x
  3. Step 3: Cross multiply
    781,109.34x = 1,077,880.05 × 436,885.62
  4. Step 4: Simplify right side
    781,109.34x = 470,910,293,929.88
  5. Step 5: Solve for x
    x = 470,910,293,929.88/781,109.34
  6. Step 6: Final answer
    x = 602,873.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.