Home / 890,971.37-1,333,264.39-771,440.66

Finding the Fourth Proportional to 890,971.37, 1,333,264.39 and 771,440.66

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Solution

The fourth proportional to 890,971.37, 1,333,264.39 and 771,440.66 is: 1,154,396.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,971.37 : 1,333,264.39 = 771,440.66 : x
  2. Step 2: Convert to fraction form
    890,971.37/1,333,264.39 = 771,440.66/x
  3. Step 3: Cross multiply
    890,971.37x = 1,333,264.39 × 771,440.66
  4. Step 4: Simplify right side
    890,971.37x = 1,028,534,352,381.17
  5. Step 5: Solve for x
    x = 1,028,534,352,381.17/890,971.37
  6. Step 6: Final answer
    x = 1,154,396.64

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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.