Home / 1,289,570.40-1,934,742.24-520,672.32

Finding the Fourth Proportional to 1,289,570.40, 1,934,742.24 and 520,672.32

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Solution

The fourth proportional to 1,289,570.40, 1,934,742.24 and 520,672.32 is: 781,164.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,570.40 : 1,934,742.24 = 520,672.32 : x
  2. Step 2: Convert to fraction form
    1,289,570.40/1,934,742.24 = 520,672.32/x
  3. Step 3: Cross multiply
    1,289,570.40x = 1,934,742.24 × 520,672.32
  4. Step 4: Simplify right side
    1,289,570.40x = 1,007,366,730,702.80
  5. Step 5: Solve for x
    x = 1,007,366,730,702.80/1,289,570.40
  6. Step 6: Final answer
    x = 781,164.59

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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.