Home / 1,231,985.68-1,700,089.44-688,118.92

Finding the Fourth Proportional to 1,231,985.68, 1,700,089.44 and 688,118.92

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Solution

The fourth proportional to 1,231,985.68, 1,700,089.44 and 688,118.92 is: 949,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,985.68 : 1,700,089.44 = 688,118.92 : x
  2. Step 2: Convert to fraction form
    1,231,985.68/1,700,089.44 = 688,118.92/x
  3. Step 3: Cross multiply
    1,231,985.68x = 1,700,089.44 × 688,118.92
  4. Step 4: Simplify right side
    1,231,985.68x = 1,169,863,709,356.20
  5. Step 5: Solve for x
    x = 1,169,863,709,356.20/1,231,985.68
  6. Step 6: Final answer
    x = 949,575.74

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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.