Home / 1,208,246.40-1,812,363.20-309,686.40

Finding the Fourth Proportional to 1,208,246.40, 1,812,363.20 and 309,686.40

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Solution

The fourth proportional to 1,208,246.40, 1,812,363.20 and 309,686.40 is: 464,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,246.40 : 1,812,363.20 = 309,686.40 : x
  2. Step 2: Convert to fraction form
    1,208,246.40/1,812,363.20 = 309,686.40/x
  3. Step 3: Cross multiply
    1,208,246.40x = 1,812,363.20 × 309,686.40
  4. Step 4: Simplify right side
    1,208,246.40x = 561,264,234,900.48
  5. Step 5: Solve for x
    x = 561,264,234,900.48/1,208,246.40
  6. Step 6: Final answer
    x = 464,527.96

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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.