Home / 808,291.20-1,210,363.20-770,966.40

Finding the Fourth Proportional to 808,291.20, 1,210,363.20 and 770,966.40

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Solution

The fourth proportional to 808,291.20, 1,210,363.20 and 770,966.40 is: 1,154,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,291.20 : 1,210,363.20 = 770,966.40 : x
  2. Step 2: Convert to fraction form
    808,291.20/1,210,363.20 = 770,966.40/x
  3. Step 3: Cross multiply
    808,291.20x = 1,210,363.20 × 770,966.40
  4. Step 4: Simplify right side
    808,291.20x = 933,149,358,996.48
  5. Step 5: Solve for x
    x = 933,149,358,996.48/808,291.20
  6. Step 6: Final answer
    x = 1,154,471.75

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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.