Home / 753,420.20-1,132,754.70-637,946.60

Finding the Fourth Proportional to 753,420.20, 1,132,754.70 and 637,946.60

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Solution

The fourth proportional to 753,420.20, 1,132,754.70 and 637,946.60 is: 959,142.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,420.20 : 1,132,754.70 = 637,946.60 : x
  2. Step 2: Convert to fraction form
    753,420.20/1,132,754.70 = 637,946.60/x
  3. Step 3: Cross multiply
    753,420.20x = 1,132,754.70 × 637,946.60
  4. Step 4: Simplify right side
    753,420.20x = 722,637,009,499.02
  5. Step 5: Solve for x
    x = 722,637,009,499.02/753,420.20
  6. Step 6: Final answer
    x = 959,142.07

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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.