Home / 1,312,305.60-1,968,458.40-889,291.20

Finding the Fourth Proportional to 1,312,305.60, 1,968,458.40 and 889,291.20

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Solution

The fourth proportional to 1,312,305.60, 1,968,458.40 and 889,291.20 is: 1,333,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,305.60 : 1,968,458.40 = 889,291.20 : x
  2. Step 2: Convert to fraction form
    1,312,305.60/1,968,458.40 = 889,291.20/x
  3. Step 3: Cross multiply
    1,312,305.60x = 1,968,458.40 × 889,291.20
  4. Step 4: Simplify right side
    1,312,305.60x = 1,750,532,732,686.08
  5. Step 5: Solve for x
    x = 1,750,532,732,686.08/1,312,305.60
  6. Step 6: Final answer
    x = 1,333,936.80

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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.