Home / 1,213,989.90-1,820,984.85-977,793.90

Finding the Fourth Proportional to 1,213,989.90, 1,820,984.85 and 977,793.90

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Solution

The fourth proportional to 1,213,989.90, 1,820,984.85 and 977,793.90 is: 1,466,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,989.90 : 1,820,984.85 = 977,793.90 : x
  2. Step 2: Convert to fraction form
    1,213,989.90/1,820,984.85 = 977,793.90/x
  3. Step 3: Cross multiply
    1,213,989.90x = 1,820,984.85 × 977,793.90
  4. Step 4: Simplify right side
    1,213,989.90x = 1,780,547,878,322.42
  5. Step 5: Solve for x
    x = 1,780,547,878,322.42/1,213,989.90
  6. Step 6: Final answer
    x = 1,466,690.85

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Similar ratio
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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.