Home / 860,126.64-1,290,207.68-313,000.32

Finding the Fourth Proportional to 860,126.64, 1,290,207.68 and 313,000.32

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Solution

The fourth proportional to 860,126.64, 1,290,207.68 and 313,000.32 is: 469,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,126.64 : 1,290,207.68 = 313,000.32 : x
  2. Step 2: Convert to fraction form
    860,126.64/1,290,207.68 = 313,000.32/x
  3. Step 3: Cross multiply
    860,126.64x = 1,290,207.68 × 313,000.32
  4. Step 4: Simplify right side
    860,126.64x = 403,835,416,706.46
  5. Step 5: Solve for x
    x = 403,835,416,706.46/860,126.64
  6. Step 6: Final answer
    x = 469,506.93

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1.5x scale

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.