Home / 721,015.16-1,076,819.29-613,250.73

Finding the Fourth Proportional to 721,015.16, 1,076,819.29 and 613,250.73

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Solution

The fourth proportional to 721,015.16, 1,076,819.29 and 613,250.73 is: 915,875.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,015.16 : 1,076,819.29 = 613,250.73 : x
  2. Step 2: Convert to fraction form
    721,015.16/1,076,819.29 = 613,250.73/x
  3. Step 3: Cross multiply
    721,015.16x = 1,076,819.29 × 613,250.73
  4. Step 4: Simplify right side
    721,015.16x = 660,360,214,137.46
  5. Step 5: Solve for x
    x = 660,360,214,137.46/721,015.16
  6. Step 6: Final answer
    x = 915,875.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.