Home / 986,389.56-1,479,459.64-312,539.24

Finding the Fourth Proportional to 986,389.56, 1,479,459.64 and 312,539.24

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Solution

The fourth proportional to 986,389.56, 1,479,459.64 and 312,539.24 is: 468,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,389.56 : 1,479,459.64 = 312,539.24 : x
  2. Step 2: Convert to fraction form
    986,389.56/1,479,459.64 = 312,539.24/x
  3. Step 3: Cross multiply
    986,389.56x = 1,479,459.64 × 312,539.24
  4. Step 4: Simplify right side
    986,389.56x = 462,389,191,496.27
  5. Step 5: Solve for x
    x = 462,389,191,496.27/986,389.56
  6. Step 6: Final answer
    x = 468,769.35

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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.