Home / 1,528,488.28-2,105,668.20-1,068,742.59

Finding the Fourth Proportional to 1,528,488.28, 2,105,668.20 and 1,068,742.59

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Solution

The fourth proportional to 1,528,488.28, 2,105,668.20 and 1,068,742.59 is: 1,472,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,488.28 : 2,105,668.20 = 1,068,742.59 : x
  2. Step 2: Convert to fraction form
    1,528,488.28/2,105,668.20 = 1,068,742.59/x
  3. Step 3: Cross multiply
    1,528,488.28x = 2,105,668.20 × 1,068,742.59
  4. Step 4: Simplify right side
    1,528,488.28x = 2,250,417,285,748.64
  5. Step 5: Solve for x
    x = 2,250,417,285,748.64/1,528,488.28
  6. Step 6: Final answer
    x = 1,472,315.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.