Home / 687,410.58-1,030,869.80-238,010.82

Finding the Fourth Proportional to 687,410.58, 1,030,869.80 and 238,010.82

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Solution

The fourth proportional to 687,410.58, 1,030,869.80 and 238,010.82 is: 356,931.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,410.58 : 1,030,869.80 = 238,010.82 : x
  2. Step 2: Convert to fraction form
    687,410.58/1,030,869.80 = 238,010.82/x
  3. Step 3: Cross multiply
    687,410.58x = 1,030,869.80 × 238,010.82
  4. Step 4: Simplify right side
    687,410.58x = 245,358,166,411.24
  5. Step 5: Solve for x
    x = 245,358,166,411.24/687,410.58
  6. Step 6: Final answer
    x = 356,931.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.