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Finding the Fourth Proportional to 650,118.24, 896,802.12 and 378,155.52

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Solution

The fourth proportional to 650,118.24, 896,802.12 and 378,155.52 is: 521,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,118.24 : 896,802.12 = 378,155.52 : x
  2. Step 2: Convert to fraction form
    650,118.24/896,802.12 = 378,155.52/x
  3. Step 3: Cross multiply
    650,118.24x = 896,802.12 × 378,155.52
  4. Step 4: Simplify right side
    650,118.24x = 339,130,672,025.70
  5. Step 5: Solve for x
    x = 339,130,672,025.70/650,118.24
  6. Step 6: Final answer
    x = 521,644.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.