Home / 1,370,116.60-2,055,371.72-423,561.12

Finding the Fourth Proportional to 1,370,116.60, 2,055,371.72 and 423,561.12

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Solution

The fourth proportional to 1,370,116.60, 2,055,371.72 and 423,561.12 is: 635,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,116.60 : 2,055,371.72 = 423,561.12 : x
  2. Step 2: Convert to fraction form
    1,370,116.60/2,055,371.72 = 423,561.12/x
  3. Step 3: Cross multiply
    1,370,116.60x = 2,055,371.72 × 423,561.12
  4. Step 4: Simplify right side
    1,370,116.60x = 870,575,547,739.53
  5. Step 5: Solve for x
    x = 870,575,547,739.53/1,370,116.60
  6. Step 6: Final answer
    x = 635,402.53

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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.