Home / 1,820,129.70-2,730,236.81-472,345.46

Finding the Fourth Proportional to 1,820,129.70, 2,730,236.81 and 472,345.46

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Solution

The fourth proportional to 1,820,129.70, 2,730,236.81 and 472,345.46 is: 708,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,129.70 : 2,730,236.81 = 472,345.46 : x
  2. Step 2: Convert to fraction form
    1,820,129.70/2,730,236.81 = 472,345.46/x
  3. Step 3: Cross multiply
    1,820,129.70x = 2,730,236.81 × 472,345.46
  4. Step 4: Simplify right side
    1,820,129.70x = 1,289,614,945,915.47
  5. Step 5: Solve for x
    x = 1,289,614,945,915.47/1,820,129.70
  6. Step 6: Final answer
    x = 708,529.15

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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.