Home / 1,385,056.02-1,912,172.49-1,055,784.15

Finding the Fourth Proportional to 1,385,056.02, 1,912,172.49 and 1,055,784.15

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Solution

The fourth proportional to 1,385,056.02, 1,912,172.49 and 1,055,784.15 is: 1,457,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,056.02 : 1,912,172.49 = 1,055,784.15 : x
  2. Step 2: Convert to fraction form
    1,385,056.02/1,912,172.49 = 1,055,784.15/x
  3. Step 3: Cross multiply
    1,385,056.02x = 1,912,172.49 × 1,055,784.15
  4. Step 4: Simplify right side
    1,385,056.02x = 2,018,841,407,008.03
  5. Step 5: Solve for x
    x = 2,018,841,407,008.03/1,385,056.02
  6. Step 6: Final answer
    x = 1,457,588.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.