Home / 1,118,117.28-1,542,953.70-634,673.64

Finding the Fourth Proportional to 1,118,117.28, 1,542,953.70 and 634,673.64

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Solution

The fourth proportional to 1,118,117.28, 1,542,953.70 and 634,673.64 is: 875,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,117.28 : 1,542,953.70 = 634,673.64 : x
  2. Step 2: Convert to fraction form
    1,118,117.28/1,542,953.70 = 634,673.64/x
  3. Step 3: Cross multiply
    1,118,117.28x = 1,542,953.70 × 634,673.64
  4. Step 4: Simplify right side
    1,118,117.28x = 979,272,041,130.47
  5. Step 5: Solve for x
    x = 979,272,041,130.47/1,118,117.28
  6. Step 6: Final answer
    x = 875,822.29

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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.