Home / 1,013,904-1,399,188.78-631,930.50

Finding the Fourth Proportional to 1,013,904, 1,399,188.78 and 631,930.50

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Solution

The fourth proportional to 1,013,904, 1,399,188.78 and 631,930.50 is: 872,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,904 : 1,399,188.78 = 631,930.50 : x
  2. Step 2: Convert to fraction form
    1,013,904/1,399,188.78 = 631,930.50/x
  3. Step 3: Cross multiply
    1,013,904x = 1,399,188.78 × 631,930.50
  4. Step 4: Simplify right side
    1,013,904x = 884,190,065,339.79
  5. Step 5: Solve for x
    x = 884,190,065,339.79/1,013,904
  6. Step 6: Final answer
    x = 872,064.88

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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.