Home / 911,290.42-1,366,973.61-312,663.34

Finding the Fourth Proportional to 911,290.42, 1,366,973.61 and 312,663.34

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Solution

The fourth proportional to 911,290.42, 1,366,973.61 and 312,663.34 is: 469,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,290.42 : 1,366,973.61 = 312,663.34 : x
  2. Step 2: Convert to fraction form
    911,290.42/1,366,973.61 = 312,663.34/x
  3. Step 3: Cross multiply
    911,290.42x = 1,366,973.61 × 312,663.34
  4. Step 4: Simplify right side
    911,290.42x = 427,402,534,594.46
  5. Step 5: Solve for x
    x = 427,402,534,594.46/911,290.42
  6. Step 6: Final answer
    x = 469,008.04

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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.