Home / 666,289.18-919,476.32-360,365.91

Finding the Fourth Proportional to 666,289.18, 919,476.32 and 360,365.91

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Solution

The fourth proportional to 666,289.18, 919,476.32 and 360,365.91 is: 497,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,289.18 : 919,476.32 = 360,365.91 : x
  2. Step 2: Convert to fraction form
    666,289.18/919,476.32 = 360,365.91/x
  3. Step 3: Cross multiply
    666,289.18x = 919,476.32 × 360,365.91
  4. Step 4: Simplify right side
    666,289.18x = 331,347,920,780.25
  5. Step 5: Solve for x
    x = 331,347,920,780.25/666,289.18
  6. Step 6: Final answer
    x = 497,303.47

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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.