Home / 1,312,308.60-1,810,985.85-708,696.60

Finding the Fourth Proportional to 1,312,308.60, 1,810,985.85 and 708,696.60

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Solution

The fourth proportional to 1,312,308.60, 1,810,985.85 and 708,696.60 is: 978,001.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,308.60 : 1,810,985.85 = 708,696.60 : x
  2. Step 2: Convert to fraction form
    1,312,308.60/1,810,985.85 = 708,696.60/x
  3. Step 3: Cross multiply
    1,312,308.60x = 1,810,985.85 × 708,696.60
  4. Step 4: Simplify right side
    1,312,308.60x = 1,283,439,501,944.70
  5. Step 5: Solve for x
    x = 1,283,439,501,944.70/1,312,308.60
  6. Step 6: Final answer
    x = 978,001.29

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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.