Home / 742,387.80-1,113,457.86-209,787.24

Finding the Fourth Proportional to 742,387.80, 1,113,457.86 and 209,787.24

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Solution

The fourth proportional to 742,387.80, 1,113,457.86 and 209,787.24 is: 314,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,387.80 : 1,113,457.86 = 209,787.24 : x
  2. Step 2: Convert to fraction form
    742,387.80/1,113,457.86 = 209,787.24/x
  3. Step 3: Cross multiply
    742,387.80x = 1,113,457.86 × 209,787.24
  4. Step 4: Simplify right side
    742,387.80x = 233,589,251,305.71
  5. Step 5: Solve for x
    x = 233,589,251,305.71/742,387.80
  6. Step 6: Final answer
    x = 314,645.86

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1.5x scale

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.