Home / 939,775.10-1,296,890.88-510,055.22

Finding the Fourth Proportional to 939,775.10, 1,296,890.88 and 510,055.22

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Solution

The fourth proportional to 939,775.10, 1,296,890.88 and 510,055.22 is: 703,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,775.10 : 1,296,890.88 = 510,055.22 : x
  2. Step 2: Convert to fraction form
    939,775.10/1,296,890.88 = 510,055.22/x
  3. Step 3: Cross multiply
    939,775.10x = 1,296,890.88 × 510,055.22
  4. Step 4: Simplify right side
    939,775.10x = 661,485,963,114.39
  5. Step 5: Solve for x
    x = 661,485,963,114.39/939,775.10
  6. Step 6: Final answer
    x = 703,876.88

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1.5x scale

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.