Home / 686,735.20-1,030,102.80-651,743.20

Finding the Fourth Proportional to 686,735.20, 1,030,102.80 and 651,743.20

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Solution

The fourth proportional to 686,735.20, 1,030,102.80 and 651,743.20 is: 977,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,735.20 : 1,030,102.80 = 651,743.20 : x
  2. Step 2: Convert to fraction form
    686,735.20/1,030,102.80 = 651,743.20/x
  3. Step 3: Cross multiply
    686,735.20x = 1,030,102.80 × 651,743.20
  4. Step 4: Simplify right side
    686,735.20x = 671,362,495,200.96
  5. Step 5: Solve for x
    x = 671,362,495,200.96/686,735.20
  6. Step 6: Final answer
    x = 977,614.80

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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.