Home / 1,125,875.07-1,553,677.50-642,431.43

Finding the Fourth Proportional to 1,125,875.07, 1,553,677.50 and 642,431.43

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Solution

The fourth proportional to 1,125,875.07, 1,553,677.50 and 642,431.43 is: 886,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,875.07 : 1,553,677.50 = 642,431.43 : x
  2. Step 2: Convert to fraction form
    1,125,875.07/1,553,677.50 = 642,431.43/x
  3. Step 3: Cross multiply
    1,125,875.07x = 1,553,677.50 × 642,431.43
  4. Step 4: Simplify right side
    1,125,875.07x = 998,131,258,083.83
  5. Step 5: Solve for x
    x = 998,131,258,083.83/1,125,875.07
  6. Step 6: Final answer
    x = 886,538.20

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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.