Home / 1,725,285.76-2,380,916.80-990,358.72

Finding the Fourth Proportional to 1,725,285.76, 2,380,916.80 and 990,358.72

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Solution

The fourth proportional to 1,725,285.76, 2,380,916.80 and 990,358.72 is: 1,366,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725,285.76 : 2,380,916.80 = 990,358.72 : x
  2. Step 2: Convert to fraction form
    1,725,285.76/2,380,916.80 = 990,358.72/x
  3. Step 3: Cross multiply
    1,725,285.76x = 2,380,916.80 × 990,358.72
  4. Step 4: Simplify right side
    1,725,285.76x = 2,357,961,714,474.50
  5. Step 5: Solve for x
    x = 2,357,961,714,474.50/1,725,285.76
  6. Step 6: Final answer
    x = 1,366,707.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.