Home / 1,243,755.18-1,865,632.77-686,332.62

Finding the Fourth Proportional to 1,243,755.18, 1,865,632.77 and 686,332.62

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Solution

The fourth proportional to 1,243,755.18, 1,865,632.77 and 686,332.62 is: 1,029,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,755.18 : 1,865,632.77 = 686,332.62 : x
  2. Step 2: Convert to fraction form
    1,243,755.18/1,865,632.77 = 686,332.62/x
  3. Step 3: Cross multiply
    1,243,755.18x = 1,865,632.77 × 686,332.62
  4. Step 4: Simplify right side
    1,243,755.18x = 1,280,444,626,991.96
  5. Step 5: Solve for x
    x = 1,280,444,626,991.96/1,243,755.18
  6. Step 6: Final answer
    x = 1,029,498.93

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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.