Home / 1,149,440.03-1,586,276.45-640,142.40

Finding the Fourth Proportional to 1,149,440.03, 1,586,276.45 and 640,142.40

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Solution

The fourth proportional to 1,149,440.03, 1,586,276.45 and 640,142.40 is: 883,423.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,440.03 : 1,586,276.45 = 640,142.40 : x
  2. Step 2: Convert to fraction form
    1,149,440.03/1,586,276.45 = 640,142.40/x
  3. Step 3: Cross multiply
    1,149,440.03x = 1,586,276.45 × 640,142.40
  4. Step 4: Simplify right side
    1,149,440.03x = 1,015,442,810,565.77
  5. Step 5: Solve for x
    x = 1,015,442,810,565.77/1,149,440.03
  6. Step 6: Final answer
    x = 883,423.92

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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.