Home / 762,389.40-1,052,019.39-456,457.83

Finding the Fourth Proportional to 762,389.40, 1,052,019.39 and 456,457.83

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Solution

The fourth proportional to 762,389.40, 1,052,019.39 and 456,457.83 is: 629,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,389.40 : 1,052,019.39 = 456,457.83 : x
  2. Step 2: Convert to fraction form
    762,389.40/1,052,019.39 = 456,457.83/x
  3. Step 3: Cross multiply
    762,389.40x = 1,052,019.39 × 456,457.83
  4. Step 4: Simplify right side
    762,389.40x = 480,202,487,877.32
  5. Step 5: Solve for x
    x = 480,202,487,877.32/762,389.40
  6. Step 6: Final answer
    x = 629,865.12

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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.