Home / 688,302.20-1,030,379.70-613,652.60

Finding the Fourth Proportional to 688,302.20, 1,030,379.70 and 613,652.60

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Solution

The fourth proportional to 688,302.20, 1,030,379.70 and 613,652.60 is: 918,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,302.20 : 1,030,379.70 = 613,652.60 : x
  2. Step 2: Convert to fraction form
    688,302.20/1,030,379.70 = 613,652.60/x
  3. Step 3: Cross multiply
    688,302.20x = 1,030,379.70 × 613,652.60
  4. Step 4: Simplify right side
    688,302.20x = 632,295,181,892.22
  5. Step 5: Solve for x
    x = 632,295,181,892.22/688,302.20
  6. Step 6: Final answer
    x = 918,630.19

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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.