Home / 686,970.18-948,022.30-381,025.30

Finding the Fourth Proportional to 686,970.18, 948,022.30 and 381,025.30

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Solution

The fourth proportional to 686,970.18, 948,022.30 and 381,025.30 is: 525,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,970.18 : 948,022.30 = 381,025.30 : x
  2. Step 2: Convert to fraction form
    686,970.18/948,022.30 = 381,025.30/x
  3. Step 3: Cross multiply
    686,970.18x = 948,022.30 × 381,025.30
  4. Step 4: Simplify right side
    686,970.18x = 361,220,481,264.19
  5. Step 5: Solve for x
    x = 361,220,481,264.19/686,970.18
  6. Step 6: Final answer
    x = 525,816.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.