Home / 749,128.20-1,123,838.10-216,666.60

Finding the Fourth Proportional to 749,128.20, 1,123,838.10 and 216,666.60

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Solution

The fourth proportional to 749,128.20, 1,123,838.10 and 216,666.60 is: 325,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,128.20 : 1,123,838.10 = 216,666.60 : x
  2. Step 2: Convert to fraction form
    749,128.20/1,123,838.10 = 216,666.60/x
  3. Step 3: Cross multiply
    749,128.20x = 1,123,838.10 × 216,666.60
  4. Step 4: Simplify right side
    749,128.20x = 243,498,180,077.46
  5. Step 5: Solve for x
    x = 243,498,180,077.46/749,128.20
  6. Step 6: Final answer
    x = 325,042.07

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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.