Home / 935,485.97-1,290,973.76-505,769.15

Finding the Fourth Proportional to 935,485.97, 1,290,973.76 and 505,769.15

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Solution

The fourth proportional to 935,485.97, 1,290,973.76 and 505,769.15 is: 697,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,485.97 : 1,290,973.76 = 505,769.15 : x
  2. Step 2: Convert to fraction form
    935,485.97/1,290,973.76 = 505,769.15/x
  3. Step 3: Cross multiply
    935,485.97x = 1,290,973.76 × 505,769.15
  4. Step 4: Simplify right side
    935,485.97x = 652,934,692,283.79
  5. Step 5: Solve for x
    x = 652,934,692,283.79/935,485.97
  6. Step 6: Final answer
    x = 697,963.11

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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.