Home / 987,447.16-1,362,690.38-551,845.40

Finding the Fourth Proportional to 987,447.16, 1,362,690.38 and 551,845.40

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Solution

The fourth proportional to 987,447.16, 1,362,690.38 and 551,845.40 is: 761,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,447.16 : 1,362,690.38 = 551,845.40 : x
  2. Step 2: Convert to fraction form
    987,447.16/1,362,690.38 = 551,845.40/x
  3. Step 3: Cross multiply
    987,447.16x = 1,362,690.38 × 551,845.40
  4. Step 4: Simplify right side
    987,447.16x = 751,994,417,827.25
  5. Step 5: Solve for x
    x = 751,994,417,827.25/987,447.16
  6. Step 6: Final answer
    x = 761,554.08

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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.