Home / 806,624.80-1,209,937.20-526,458.40

Finding the Fourth Proportional to 806,624.80, 1,209,937.20 and 526,458.40

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Solution

The fourth proportional to 806,624.80, 1,209,937.20 and 526,458.40 is: 789,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,624.80 : 1,209,937.20 = 526,458.40 : x
  2. Step 2: Convert to fraction form
    806,624.80/1,209,937.20 = 526,458.40/x
  3. Step 3: Cross multiply
    806,624.80x = 1,209,937.20 × 526,458.40
  4. Step 4: Simplify right side
    806,624.80x = 636,981,602,412.48
  5. Step 5: Solve for x
    x = 636,981,602,412.48/806,624.80
  6. Step 6: Final answer
    x = 789,687.60

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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.