Home / 742,810.16-1,025,141.46-420,577.04

Finding the Fourth Proportional to 742,810.16, 1,025,141.46 and 420,577.04

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Solution

The fourth proportional to 742,810.16, 1,025,141.46 and 420,577.04 is: 580,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,810.16 : 1,025,141.46 = 420,577.04 : x
  2. Step 2: Convert to fraction form
    742,810.16/1,025,141.46 = 420,577.04/x
  3. Step 3: Cross multiply
    742,810.16x = 1,025,141.46 × 420,577.04
  4. Step 4: Simplify right side
    742,810.16x = 431,150,960,828.08
  5. Step 5: Solve for x
    x = 431,150,960,828.08/742,810.16
  6. Step 6: Final answer
    x = 580,432.23

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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.