Home / 1,312,308.52-1,810,985.78-708,696.52

Finding the Fourth Proportional to 1,312,308.52, 1,810,985.78 and 708,696.52

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Solution

The fourth proportional to 1,312,308.52, 1,810,985.78 and 708,696.52 is: 978,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,308.52 : 1,810,985.78 = 708,696.52 : x
  2. Step 2: Convert to fraction form
    1,312,308.52/1,810,985.78 = 708,696.52/x
  3. Step 3: Cross multiply
    1,312,308.52x = 1,810,985.78 × 708,696.52
  4. Step 4: Simplify right side
    1,312,308.52x = 1,283,439,320,055.49
  5. Step 5: Solve for x
    x = 1,283,439,320,055.49/1,312,308.52
  6. Step 6: Final answer
    x = 978,001.21

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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.