Home / 727,793.40-1,091,690.10-686,459.10

Finding the Fourth Proportional to 727,793.40, 1,091,690.10 and 686,459.10

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Solution

The fourth proportional to 727,793.40, 1,091,690.10 and 686,459.10 is: 1,029,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,793.40 : 1,091,690.10 = 686,459.10 : x
  2. Step 2: Convert to fraction form
    727,793.40/1,091,690.10 = 686,459.10/x
  3. Step 3: Cross multiply
    727,793.40x = 1,091,690.10 × 686,459.10
  4. Step 4: Simplify right side
    727,793.40x = 749,400,603,524.91
  5. Step 5: Solve for x
    x = 749,400,603,524.91/727,793.40
  6. Step 6: Final answer
    x = 1,029,688.65

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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.