Home / 1,020,781.44-1,531,172.16-272,808

Finding the Fourth Proportional to 1,020,781.44, 1,531,172.16 and 272,808

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Solution

The fourth proportional to 1,020,781.44, 1,531,172.16 and 272,808 is: 409,212

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,781.44 : 1,531,172.16 = 272,808 : x
  2. Step 2: Convert to fraction form
    1,020,781.44/1,531,172.16 = 272,808/x
  3. Step 3: Cross multiply
    1,020,781.44x = 1,531,172.16 × 272,808
  4. Step 4: Simplify right side
    1,020,781.44x = 417,716,014,625.28
  5. Step 5: Solve for x
    x = 417,716,014,625.28/1,020,781.44
  6. Step 6: Final answer
    x = 409,212

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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.