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Finding the Fourth Proportional to 977,899.80, 1,466,849.70 and 945,240.60

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Solution

The fourth proportional to 977,899.80, 1,466,849.70 and 945,240.60 is: 1,417,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,899.80 : 1,466,849.70 = 945,240.60 : x
  2. Step 2: Convert to fraction form
    977,899.80/1,466,849.70 = 945,240.60/x
  3. Step 3: Cross multiply
    977,899.80x = 1,466,849.70 × 945,240.60
  4. Step 4: Simplify right side
    977,899.80x = 1,386,525,890,537.82
  5. Step 5: Solve for x
    x = 1,386,525,890,537.82/977,899.80
  6. Step 6: Final answer
    x = 1,417,860.90

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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.