Home / 910,689.60-1,366,100.70-349,724.10

Finding the Fourth Proportional to 910,689.60, 1,366,100.70 and 349,724.10

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Solution

The fourth proportional to 910,689.60, 1,366,100.70 and 349,724.10 is: 524,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689.60 : 1,366,100.70 = 349,724.10 : x
  2. Step 2: Convert to fraction form
    910,689.60/1,366,100.70 = 349,724.10/x
  3. Step 3: Cross multiply
    910,689.60x = 1,366,100.70 × 349,724.10
  4. Step 4: Simplify right side
    910,689.60x = 477,758,337,816.87
  5. Step 5: Solve for x
    x = 477,758,337,816.87/910,689.60
  6. Step 6: Final answer
    x = 524,611.61

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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.