Home / 1,429,928.40-1,973,335.68-785,362.80

Finding the Fourth Proportional to 1,429,928.40, 1,973,335.68 and 785,362.80

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Solution

The fourth proportional to 1,429,928.40, 1,973,335.68 and 785,362.80 is: 1,083,819.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,928.40 : 1,973,335.68 = 785,362.80 : x
  2. Step 2: Convert to fraction form
    1,429,928.40/1,973,335.68 = 785,362.80/x
  3. Step 3: Cross multiply
    1,429,928.40x = 1,973,335.68 × 785,362.80
  4. Step 4: Simplify right side
    1,429,928.40x = 1,549,784,434,984.70
  5. Step 5: Solve for x
    x = 1,549,784,434,984.70/1,429,928.40
  6. Step 6: Final answer
    x = 1,083,819.61

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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.