Home / 1,288,348.50-1,932,510.36-783,048.90

Finding the Fourth Proportional to 1,288,348.50, 1,932,510.36 and 783,048.90

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Solution

The fourth proportional to 1,288,348.50, 1,932,510.36 and 783,048.90 is: 1,174,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,348.50 : 1,932,510.36 = 783,048.90 : x
  2. Step 2: Convert to fraction form
    1,288,348.50/1,932,510.36 = 783,048.90/x
  3. Step 3: Cross multiply
    1,288,348.50x = 1,932,510.36 × 783,048.90
  4. Step 4: Simplify right side
    1,288,348.50x = 1,513,250,111,636.60
  5. Step 5: Solve for x
    x = 1,513,250,111,636.60/1,288,348.50
  6. Step 6: Final answer
    x = 1,174,565.82

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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.