Home / 753,543.20-1,130,460.60-221,081.60

Finding the Fourth Proportional to 753,543.20, 1,130,460.60 and 221,081.60

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Solution

The fourth proportional to 753,543.20, 1,130,460.60 and 221,081.60 is: 331,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,543.20 : 1,130,460.60 = 221,081.60 : x
  2. Step 2: Convert to fraction form
    753,543.20/1,130,460.60 = 221,081.60/x
  3. Step 3: Cross multiply
    753,543.20x = 1,130,460.60 × 221,081.60
  4. Step 4: Simplify right side
    753,543.20x = 249,924,038,184.96
  5. Step 5: Solve for x
    x = 249,924,038,184.96/753,543.20
  6. Step 6: Final answer
    x = 331,665.18

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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.