Home / 712,492.12-1,068,639.36-179,980.30

Finding the Fourth Proportional to 712,492.12, 1,068,639.36 and 179,980.30

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Solution

The fourth proportional to 712,492.12, 1,068,639.36 and 179,980.30 is: 269,945.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,492.12 : 1,068,639.36 = 179,980.30 : x
  2. Step 2: Convert to fraction form
    712,492.12/1,068,639.36 = 179,980.30/x
  3. Step 3: Cross multiply
    712,492.12x = 1,068,639.36 × 179,980.30
  4. Step 4: Simplify right side
    712,492.12x = 192,334,032,604.61
  5. Step 5: Solve for x
    x = 192,334,032,604.61/712,492.12
  6. Step 6: Final answer
    x = 269,945.49

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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.