Home / 970,100.80-1,455,410.40-865,643.20

Finding the Fourth Proportional to 970,100.80, 1,455,410.40 and 865,643.20

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Solution

The fourth proportional to 970,100.80, 1,455,410.40 and 865,643.20 is: 1,298,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,100.80 : 1,455,410.40 = 865,643.20 : x
  2. Step 2: Convert to fraction form
    970,100.80/1,455,410.40 = 865,643.20/x
  3. Step 3: Cross multiply
    970,100.80x = 1,455,410.40 × 865,643.20
  4. Step 4: Simplify right side
    970,100.80x = 1,259,866,115,969.28
  5. Step 5: Solve for x
    x = 1,259,866,115,969.28/970,100.80
  6. Step 6: Final answer
    x = 1,298,696.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.