Home / 1,112,527.20-1,668,920.40-402,889.44

Finding the Fourth Proportional to 1,112,527.20, 1,668,920.40 and 402,889.44

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Solution

The fourth proportional to 1,112,527.20, 1,668,920.40 and 402,889.44 is: 604,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,527.20 : 1,668,920.40 = 402,889.44 : x
  2. Step 2: Convert to fraction form
    1,112,527.20/1,668,920.40 = 402,889.44/x
  3. Step 3: Cross multiply
    1,112,527.20x = 1,668,920.40 × 402,889.44
  4. Step 4: Simplify right side
    1,112,527.20x = 672,390,405,360.58
  5. Step 5: Solve for x
    x = 672,390,405,360.58/1,112,527.20
  6. Step 6: Final answer
    x = 604,381.09

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1.5x scale

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.