Home / 712,939.60-1,069,312.20-214,303.60

Finding the Fourth Proportional to 712,939.60, 1,069,312.20 and 214,303.60

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Solution

The fourth proportional to 712,939.60, 1,069,312.20 and 214,303.60 is: 321,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,939.60 : 1,069,312.20 = 214,303.60 : x
  2. Step 2: Convert to fraction form
    712,939.60/1,069,312.20 = 214,303.60/x
  3. Step 3: Cross multiply
    712,939.60x = 1,069,312.20 × 214,303.60
  4. Step 4: Simplify right side
    712,939.60x = 229,157,453,983.92
  5. Step 5: Solve for x
    x = 229,157,453,983.92/712,939.60
  6. Step 6: Final answer
    x = 321,426.18

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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.