Home / 1,457,890.76-2,186,688.48-393,040.46

Finding the Fourth Proportional to 1,457,890.76, 2,186,688.48 and 393,040.46

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Solution

The fourth proportional to 1,457,890.76, 2,186,688.48 and 393,040.46 is: 589,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,890.76 : 2,186,688.48 = 393,040.46 : x
  2. Step 2: Convert to fraction form
    1,457,890.76/2,186,688.48 = 393,040.46/x
  3. Step 3: Cross multiply
    1,457,890.76x = 2,186,688.48 × 393,040.46
  4. Step 4: Simplify right side
    1,457,890.76x = 859,457,046,055.90
  5. Step 5: Solve for x
    x = 859,457,046,055.90/1,457,890.76
  6. Step 6: Final answer
    x = 589,520.88

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Double scale
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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.