Home / 939,830.76-1,296,931.70-510,101.69

Finding the Fourth Proportional to 939,830.76, 1,296,931.70 and 510,101.69

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Solution

The fourth proportional to 939,830.76, 1,296,931.70 and 510,101.69 is: 703,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,830.76 : 1,296,931.70 = 510,101.69 : x
  2. Step 2: Convert to fraction form
    939,830.76/1,296,931.70 = 510,101.69/x
  3. Step 3: Cross multiply
    939,830.76x = 1,296,931.70 × 510,101.69
  4. Step 4: Simplify right side
    939,830.76x = 661,567,046,775.17
  5. Step 5: Solve for x
    x = 661,567,046,775.17/939,830.76
  6. Step 6: Final answer
    x = 703,921.47

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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.