Home / 761,408.64-1,142,121.06-312,014.16

Finding the Fourth Proportional to 761,408.64, 1,142,121.06 and 312,014.16

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Solution

The fourth proportional to 761,408.64, 1,142,121.06 and 312,014.16 is: 468,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,408.64 : 1,142,121.06 = 312,014.16 : x
  2. Step 2: Convert to fraction form
    761,408.64/1,142,121.06 = 312,014.16/x
  3. Step 3: Cross multiply
    761,408.64x = 1,142,121.06 × 312,014.16
  4. Step 4: Simplify right side
    761,408.64x = 356,357,943,154.21
  5. Step 5: Solve for x
    x = 356,357,943,154.21/761,408.64
  6. Step 6: Final answer
    x = 468,024.56

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Double scale
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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.