Home / 1,137,743.28-1,570,072.14-621,490.86

Finding the Fourth Proportional to 1,137,743.28, 1,570,072.14 and 621,490.86

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Solution

The fourth proportional to 1,137,743.28, 1,570,072.14 and 621,490.86 is: 857,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,743.28 : 1,570,072.14 = 621,490.86 : x
  2. Step 2: Convert to fraction form
    1,137,743.28/1,570,072.14 = 621,490.86/x
  3. Step 3: Cross multiply
    1,137,743.28x = 1,570,072.14 × 621,490.86
  4. Step 4: Simplify right side
    1,137,743.28x = 975,785,484,550.64
  5. Step 5: Solve for x
    x = 975,785,484,550.64/1,137,743.28
  6. Step 6: Final answer
    x = 857,649.97

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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.