Home / 765,810.45-1,056,800.92-479,488.41

Finding the Fourth Proportional to 765,810.45, 1,056,800.92 and 479,488.41

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Solution

The fourth proportional to 765,810.45, 1,056,800.92 and 479,488.41 is: 661,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,810.45 : 1,056,800.92 = 479,488.41 : x
  2. Step 2: Convert to fraction form
    765,810.45/1,056,800.92 = 479,488.41/x
  3. Step 3: Cross multiply
    765,810.45x = 1,056,800.92 × 479,488.41
  4. Step 4: Simplify right side
    765,810.45x = 506,723,792,817.34
  5. Step 5: Solve for x
    x = 506,723,792,817.34/765,810.45
  6. Step 6: Final answer
    x = 661,683.05

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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.