Home / 987,510.12-1,362,874.79-557,817.93

Finding the Fourth Proportional to 987,510.12, 1,362,874.79 and 557,817.93

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Solution

The fourth proportional to 987,510.12, 1,362,874.79 and 557,817.93 is: 769,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,510.12 : 1,362,874.79 = 557,817.93 : x
  2. Step 2: Convert to fraction form
    987,510.12/1,362,874.79 = 557,817.93/x
  3. Step 3: Cross multiply
    987,510.12x = 1,362,874.79 × 557,817.93
  4. Step 4: Simplify right side
    987,510.12x = 760,235,994,206.99
  5. Step 5: Solve for x
    x = 760,235,994,206.99/987,510.12
  6. Step 6: Final answer
    x = 769,851.35

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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.