Home / 753,343.20-1,129,053.12-353,102.16

Finding the Fourth Proportional to 753,343.20, 1,129,053.12 and 353,102.16

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Solution

The fourth proportional to 753,343.20, 1,129,053.12 and 353,102.16 is: 529,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,343.20 : 1,129,053.12 = 353,102.16 : x
  2. Step 2: Convert to fraction form
    753,343.20/1,129,053.12 = 353,102.16/x
  3. Step 3: Cross multiply
    753,343.20x = 1,129,053.12 × 353,102.16
  4. Step 4: Simplify right side
    753,343.20x = 398,671,095,426.74
  5. Step 5: Solve for x
    x = 398,671,095,426.74/753,343.20
  6. Step 6: Final answer
    x = 529,202.49

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Double scale
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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.