Home / 765,686.21-1,146,522.72-539,823.78

Finding the Fourth Proportional to 765,686.21, 1,146,522.72 and 539,823.78

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Solution

The fourth proportional to 765,686.21, 1,146,522.72 and 539,823.78 is: 808,320.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,686.21 : 1,146,522.72 = 539,823.78 : x
  2. Step 2: Convert to fraction form
    765,686.21/1,146,522.72 = 539,823.78/x
  3. Step 3: Cross multiply
    765,686.21x = 1,146,522.72 × 539,823.78
  4. Step 4: Simplify right side
    765,686.21x = 618,920,228,566.28
  5. Step 5: Solve for x
    x = 618,920,228,566.28/765,686.21
  6. Step 6: Final answer
    x = 808,320.99

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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.