Home / 1,125,665.45-1,553,389.72-628,953.41

Finding the Fourth Proportional to 1,125,665.45, 1,553,389.72 and 628,953.41

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Solution

The fourth proportional to 1,125,665.45, 1,553,389.72 and 628,953.41 is: 867,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,665.45 : 1,553,389.72 = 628,953.41 : x
  2. Step 2: Convert to fraction form
    1,125,665.45/1,553,389.72 = 628,953.41/x
  3. Step 3: Cross multiply
    1,125,665.45x = 1,553,389.72 × 628,953.41
  4. Step 4: Simplify right side
    1,125,665.45x = 977,009,750,541.23
  5. Step 5: Solve for x
    x = 977,009,750,541.23/1,125,665.45
  6. Step 6: Final answer
    x = 867,939.72

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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.