Home / 921,395.76-1,270,944.18-634,417.44

Finding the Fourth Proportional to 921,395.76, 1,270,944.18 and 634,417.44

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Solution

The fourth proportional to 921,395.76, 1,270,944.18 and 634,417.44 is: 875,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,395.76 : 1,270,944.18 = 634,417.44 : x
  2. Step 2: Convert to fraction form
    921,395.76/1,270,944.18 = 634,417.44/x
  3. Step 3: Cross multiply
    921,395.76x = 1,270,944.18 × 634,417.44
  4. Step 4: Simplify right side
    921,395.76x = 806,309,153,058.50
  5. Step 5: Solve for x
    x = 806,309,153,058.50/921,395.76
  6. Step 6: Final answer
    x = 875,095.36

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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.