Home / 990,475.92-1,366,856.69-537,766.92

Finding the Fourth Proportional to 990,475.92, 1,366,856.69 and 537,766.92

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Solution

The fourth proportional to 990,475.92, 1,366,856.69 and 537,766.92 is: 742,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,475.92 : 1,366,856.69 = 537,766.92 : x
  2. Step 2: Convert to fraction form
    990,475.92/1,366,856.69 = 537,766.92/x
  3. Step 3: Cross multiply
    990,475.92x = 1,366,856.69 × 537,766.92
  4. Step 4: Simplify right side
    990,475.92x = 735,050,309,573.86
  5. Step 5: Solve for x
    x = 735,050,309,573.86/990,475.92
  6. Step 6: Final answer
    x = 742,118.30

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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.