Home / 761,491.59-1,050,864.62-421,965.51

Finding the Fourth Proportional to 761,491.59, 1,050,864.62 and 421,965.51

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Solution

The fourth proportional to 761,491.59, 1,050,864.62 and 421,965.51 is: 582,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,491.59 : 1,050,864.62 = 421,965.51 : x
  2. Step 2: Convert to fraction form
    761,491.59/1,050,864.62 = 421,965.51/x
  3. Step 3: Cross multiply
    761,491.59x = 1,050,864.62 × 421,965.51
  4. Step 4: Simplify right side
    761,491.59x = 443,428,623,209.43
  5. Step 5: Solve for x
    x = 443,428,623,209.43/761,491.59
  6. Step 6: Final answer
    x = 582,315.85

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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.