Home / 761,670.90-1,051,065.36-439,361.76

Finding the Fourth Proportional to 761,670.90, 1,051,065.36 and 439,361.76

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Solution

The fourth proportional to 761,670.90, 1,051,065.36 and 439,361.76 is: 606,295.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,670.90 : 1,051,065.36 = 439,361.76 : x
  2. Step 2: Convert to fraction form
    761,670.90/1,051,065.36 = 439,361.76/x
  3. Step 3: Cross multiply
    761,670.90x = 1,051,065.36 × 439,361.76
  4. Step 4: Simplify right side
    761,670.90x = 461,797,926,444.63
  5. Step 5: Solve for x
    x = 461,797,926,444.63/761,670.90
  6. Step 6: Final answer
    x = 606,295.88

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1.5x scale

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.