Home / 970,090.80-1,455,395.40-865,633.20

Finding the Fourth Proportional to 970,090.80, 1,455,395.40 and 865,633.20

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Solution

The fourth proportional to 970,090.80, 1,455,395.40 and 865,633.20 is: 1,298,681.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,090.80 : 1,455,395.40 = 865,633.20 : x
  2. Step 2: Convert to fraction form
    970,090.80/1,455,395.40 = 865,633.20/x
  3. Step 3: Cross multiply
    970,090.80x = 1,455,395.40 × 865,633.20
  4. Step 4: Simplify right side
    970,090.80x = 1,259,838,577,367.28
  5. Step 5: Solve for x
    x = 1,259,838,577,367.28/970,090.80
  6. Step 6: Final answer
    x = 1,298,681.09

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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.