Home / 761,491.60-1,141,229.40-405,739.60

Finding the Fourth Proportional to 761,491.60, 1,141,229.40 and 405,739.60

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Solution

The fourth proportional to 761,491.60, 1,141,229.40 and 405,739.60 is: 608,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,491.60 : 1,141,229.40 = 405,739.60 : x
  2. Step 2: Convert to fraction form
    761,491.60/1,141,229.40 = 405,739.60/x
  3. Step 3: Cross multiply
    761,491.60x = 1,141,229.40 × 405,739.60
  4. Step 4: Simplify right side
    761,491.60x = 463,041,960,264.24
  5. Step 5: Solve for x
    x = 463,041,960,264.24/761,491.60
  6. Step 6: Final answer
    x = 608,072.32

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1.5x scale

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.