Home / 977,458.80-1,466,188.20-812,121.60

Finding the Fourth Proportional to 977,458.80, 1,466,188.20 and 812,121.60

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Solution

The fourth proportional to 977,458.80, 1,466,188.20 and 812,121.60 is: 1,218,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,458.80 : 1,466,188.20 = 812,121.60 : x
  2. Step 2: Convert to fraction form
    977,458.80/1,466,188.20 = 812,121.60/x
  3. Step 3: Cross multiply
    977,458.80x = 1,466,188.20 × 812,121.60
  4. Step 4: Simplify right side
    977,458.80x = 1,190,723,106,885.12
  5. Step 5: Solve for x
    x = 1,190,723,106,885.12/977,458.80
  6. Step 6: Final answer
    x = 1,218,182.40

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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.