Home / 987,047.02-1,362,114.36-557,301.52

Finding the Fourth Proportional to 987,047.02, 1,362,114.36 and 557,301.52

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Solution

The fourth proportional to 987,047.02, 1,362,114.36 and 557,301.52 is: 769,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,047.02 : 1,362,114.36 = 557,301.52 : x
  2. Step 2: Convert to fraction form
    987,047.02/1,362,114.36 = 557,301.52/x
  3. Step 3: Cross multiply
    987,047.02x = 1,362,114.36 × 557,301.52
  4. Step 4: Simplify right side
    987,047.02x = 759,108,403,241.83
  5. Step 5: Solve for x
    x = 759,108,403,241.83/987,047.02
  6. Step 6: Final answer
    x = 769,070.15

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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.