Home / 1,631,454.80-2,447,182.20-686,670.80

Finding the Fourth Proportional to 1,631,454.80, 2,447,182.20 and 686,670.80

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Solution

The fourth proportional to 1,631,454.80, 2,447,182.20 and 686,670.80 is: 1,030,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,454.80 : 2,447,182.20 = 686,670.80 : x
  2. Step 2: Convert to fraction form
    1,631,454.80/2,447,182.20 = 686,670.80/x
  3. Step 3: Cross multiply
    1,631,454.80x = 2,447,182.20 × 686,670.80
  4. Step 4: Simplify right side
    1,631,454.80x = 1,680,408,559,019.76
  5. Step 5: Solve for x
    x = 1,680,408,559,019.76/1,631,454.80
  6. Step 6: Final answer
    x = 1,030,006.20

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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.