Home / 680,985.60-1,021,475.64-207,669.58

Finding the Fourth Proportional to 680,985.60, 1,021,475.64 and 207,669.58

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Solution

The fourth proportional to 680,985.60, 1,021,475.64 and 207,669.58 is: 311,503.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,985.60 : 1,021,475.64 = 207,669.58 : x
  2. Step 2: Convert to fraction form
    680,985.60/1,021,475.64 = 207,669.58/x
  3. Step 3: Cross multiply
    680,985.60x = 1,021,475.64 × 207,669.58
  4. Step 4: Simplify right side
    680,985.60x = 212,129,417,139.03
  5. Step 5: Solve for x
    x = 212,129,417,139.03/680,985.60
  6. Step 6: Final answer
    x = 311,503.53

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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.