Home / 405,977.40-608,966.10-106,457.40

Finding the Fourth Proportional to 405,977.40, 608,966.10 and 106,457.40

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Solution

The fourth proportional to 405,977.40, 608,966.10 and 106,457.40 is: 159,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,977.40 : 608,966.10 = 106,457.40 : x
  2. Step 2: Convert to fraction form
    405,977.40/608,966.10 = 106,457.40/x
  3. Step 3: Cross multiply
    405,977.40x = 608,966.10 × 106,457.40
  4. Step 4: Simplify right side
    405,977.40x = 64,828,947,694.14
  5. Step 5: Solve for x
    x = 64,828,947,694.14/405,977.40
  6. Step 6: Final answer
    x = 159,686.10

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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.