Home / 668,652.90-1,003,132.34-289,636.74

Finding the Fourth Proportional to 668,652.90, 1,003,132.34 and 289,636.74

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Solution

The fourth proportional to 668,652.90, 1,003,132.34 and 289,636.74 is: 434,521.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,652.90 : 1,003,132.34 = 289,636.74 : x
  2. Step 2: Convert to fraction form
    668,652.90/1,003,132.34 = 289,636.74/x
  3. Step 3: Cross multiply
    668,652.90x = 1,003,132.34 × 289,636.74
  4. Step 4: Simplify right side
    668,652.90x = 290,543,980,746.17
  5. Step 5: Solve for x
    x = 290,543,980,746.17/668,652.90
  6. Step 6: Final answer
    x = 434,521.38

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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.