Home / 1,110,340.80-1,666,288.80-711,950.40

Finding the Fourth Proportional to 1,110,340.80, 1,666,288.80 and 711,950.40

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Solution

The fourth proportional to 1,110,340.80, 1,666,288.80 and 711,950.40 is: 1,068,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,340.80 : 1,666,288.80 = 711,950.40 : x
  2. Step 2: Convert to fraction form
    1,110,340.80/1,666,288.80 = 711,950.40/x
  3. Step 3: Cross multiply
    1,110,340.80x = 1,666,288.80 × 711,950.40
  4. Step 4: Simplify right side
    1,110,340.80x = 1,186,314,977,675.52
  5. Step 5: Solve for x
    x = 1,186,314,977,675.52/1,110,340.80
  6. Step 6: Final answer
    x = 1,068,424.20

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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.