Home / 1,140,106.40-1,709,031.60-540,012.80

Finding the Fourth Proportional to 1,140,106.40, 1,709,031.60 and 540,012.80

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Solution

The fourth proportional to 1,140,106.40, 1,709,031.60 and 540,012.80 is: 809,484.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,106.40 : 1,709,031.60 = 540,012.80 : x
  2. Step 2: Convert to fraction form
    1,140,106.40/1,709,031.60 = 540,012.80/x
  3. Step 3: Cross multiply
    1,140,106.40x = 1,709,031.60 × 540,012.80
  4. Step 4: Simplify right side
    1,140,106.40x = 922,898,939,604.48
  5. Step 5: Solve for x
    x = 922,898,939,604.48/1,140,106.40
  6. Step 6: Final answer
    x = 809,484.92

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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.