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Finding the Fourth Proportional to 881,160, 1,216,004.04 and 478,752

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Solution

The fourth proportional to 881,160, 1,216,004.04 and 478,752 is: 660,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,160 : 1,216,004.04 = 478,752 : x
  2. Step 2: Convert to fraction form
    881,160/1,216,004.04 = 478,752/x
  3. Step 3: Cross multiply
    881,160x = 1,216,004.04 × 478,752
  4. Step 4: Simplify right side
    881,160x = 582,164,366,158.08
  5. Step 5: Solve for x
    x = 582,164,366,158.08/881,160
  6. Step 6: Final answer
    x = 660,679.52

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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.