Home / 1,577,851.20-2,365,221.60-778,478.40

Finding the Fourth Proportional to 1,577,851.20, 2,365,221.60 and 778,478.40

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Solution

The fourth proportional to 1,577,851.20, 2,365,221.60 and 778,478.40 is: 1,166,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577,851.20 : 2,365,221.60 = 778,478.40 : x
  2. Step 2: Convert to fraction form
    1,577,851.20/2,365,221.60 = 778,478.40/x
  3. Step 3: Cross multiply
    1,577,851.20x = 2,365,221.60 × 778,478.40
  4. Step 4: Simplify right side
    1,577,851.20x = 1,841,273,926,813.44
  5. Step 5: Solve for x
    x = 1,841,273,926,813.44/1,577,851.20
  6. Step 6: Final answer
    x = 1,166,950.30

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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.