Home / 1,187,440.80-1,778,536.80-977,488.80

Finding the Fourth Proportional to 1,187,440.80, 1,778,536.80 and 977,488.80

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Solution

The fourth proportional to 1,187,440.80, 1,778,536.80 and 977,488.80 is: 1,464,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,440.80 : 1,778,536.80 = 977,488.80 : x
  2. Step 2: Convert to fraction form
    1,187,440.80/1,778,536.80 = 977,488.80/x
  3. Step 3: Cross multiply
    1,187,440.80x = 1,778,536.80 × 977,488.80
  4. Step 4: Simplify right side
    1,187,440.80x = 1,738,499,802,387.84
  5. Step 5: Solve for x
    x = 1,738,499,802,387.84/1,187,440.80
  6. Step 6: Final answer
    x = 1,464,072.82

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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.