Home / 939,781.95-1,296,899.64-510,062.07

Finding the Fourth Proportional to 939,781.95, 1,296,899.64 and 510,062.07

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Solution

The fourth proportional to 939,781.95, 1,296,899.64 and 510,062.07 is: 703,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,781.95 : 1,296,899.64 = 510,062.07 : x
  2. Step 2: Convert to fraction form
    939,781.95/1,296,899.64 = 510,062.07/x
  3. Step 3: Cross multiply
    939,781.95x = 1,296,899.64 × 510,062.07
  4. Step 4: Simplify right side
    939,781.95x = 661,499,314,960.66
  5. Step 5: Solve for x
    x = 661,499,314,960.66/939,781.95
  6. Step 6: Final answer
    x = 703,885.95

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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.