Home / 922,595.70-1,384,080.33-390,115.86

Finding the Fourth Proportional to 922,595.70, 1,384,080.33 and 390,115.86

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Solution

The fourth proportional to 922,595.70, 1,384,080.33 and 390,115.86 is: 585,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,595.70 : 1,384,080.33 = 390,115.86 : x
  2. Step 2: Convert to fraction form
    922,595.70/1,384,080.33 = 390,115.86/x
  3. Step 3: Cross multiply
    922,595.70x = 1,384,080.33 × 390,115.86
  4. Step 4: Simplify right side
    922,595.70x = 539,951,688,247.03
  5. Step 5: Solve for x
    x = 539,951,688,247.03/922,595.70
  6. Step 6: Final answer
    x = 585,252.77

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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.