Home / 1,386,098.75-2,076,200.22-665,378.00

Finding the Fourth Proportional to 1,386,098.75, 2,076,200.22 and 665,378.00

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Solution

The fourth proportional to 1,386,098.75, 2,076,200.22 and 665,378.00 is: 996,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,098.75 : 2,076,200.22 = 665,378.00 : x
  2. Step 2: Convert to fraction form
    1,386,098.75/2,076,200.22 = 665,378.00/x
  3. Step 3: Cross multiply
    1,386,098.75x = 2,076,200.22 × 665,378.00
  4. Step 4: Simplify right side
    1,386,098.75x = 1,381,457,939,602.16
  5. Step 5: Solve for x
    x = 1,381,457,939,602.16/1,386,098.75
  6. Step 6: Final answer
    x = 996,651.89

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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.