Home / 806,078.40-1,210,048.80-432,830.40

Finding the Fourth Proportional to 806,078.40, 1,210,048.80 and 432,830.40

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Solution

The fourth proportional to 806,078.40, 1,210,048.80 and 432,830.40 is: 649,745.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,078.40 : 1,210,048.80 = 432,830.40 : x
  2. Step 2: Convert to fraction form
    806,078.40/1,210,048.80 = 432,830.40/x
  3. Step 3: Cross multiply
    806,078.40x = 1,210,048.80 × 432,830.40
  4. Step 4: Simplify right side
    806,078.40x = 523,745,906,123.52
  5. Step 5: Solve for x
    x = 523,745,906,123.52/806,078.40
  6. Step 6: Final answer
    x = 649,745.62

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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.