Home / 379,320.24-570,132-253,407.36

Finding the Fourth Proportional to 379,320.24, 570,132 and 253,407.36

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Solution

The fourth proportional to 379,320.24, 570,132 and 253,407.36 is: 380,880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,320.24 : 570,132 = 253,407.36 : x
  2. Step 2: Convert to fraction form
    379,320.24/570,132 = 253,407.36/x
  3. Step 3: Cross multiply
    379,320.24x = 570,132 × 253,407.36
  4. Step 4: Simplify right side
    379,320.24x = 144,475,644,971.52
  5. Step 5: Solve for x
    x = 144,475,644,971.52/379,320.24
  6. Step 6: Final answer
    x = 380,880.40

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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.