Home / 786,687.40-1,180,614.30-520,359.40

Finding the Fourth Proportional to 786,687.40, 1,180,614.30 and 520,359.40

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Solution

The fourth proportional to 786,687.40, 1,180,614.30 and 520,359.40 is: 780,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,687.40 : 1,180,614.30 = 520,359.40 : x
  2. Step 2: Convert to fraction form
    786,687.40/1,180,614.30 = 520,359.40/x
  3. Step 3: Cross multiply
    786,687.40x = 1,180,614.30 × 520,359.40
  4. Step 4: Simplify right side
    786,687.40x = 614,343,748,779.42
  5. Step 5: Solve for x
    x = 614,343,748,779.42/786,687.40
  6. Step 6: Final answer
    x = 780,924.86

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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.