Home / 686,035.10-1,030,219.05-508,742.30

Finding the Fourth Proportional to 686,035.10, 1,030,219.05 and 508,742.30

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Solution

The fourth proportional to 686,035.10, 1,030,219.05 and 508,742.30 is: 763,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,035.10 : 1,030,219.05 = 508,742.30 : x
  2. Step 2: Convert to fraction form
    686,035.10/1,030,219.05 = 508,742.30/x
  3. Step 3: Cross multiply
    686,035.10x = 1,030,219.05 × 508,742.30
  4. Step 4: Simplify right side
    686,035.10x = 524,116,009,000.82
  5. Step 5: Solve for x
    x = 524,116,009,000.82/686,035.10
  6. Step 6: Final answer
    x = 763,978.42

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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.