Home / 771,810.48-1,065,230.28-449,711.46

Finding the Fourth Proportional to 771,810.48, 1,065,230.28 and 449,711.46

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Solution

The fourth proportional to 771,810.48, 1,065,230.28 and 449,711.46 is: 620,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,810.48 : 1,065,230.28 = 449,711.46 : x
  2. Step 2: Convert to fraction form
    771,810.48/1,065,230.28 = 449,711.46/x
  3. Step 3: Cross multiply
    771,810.48x = 1,065,230.28 × 449,711.46
  4. Step 4: Simplify right side
    771,810.48x = 479,046,264,455.01
  5. Step 5: Solve for x
    x = 479,046,264,455.01/771,810.48
  6. Step 6: Final answer
    x = 620,678.62

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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.