Home / 987,510.53-1,362,875.36-557,818.34

Finding the Fourth Proportional to 987,510.53, 1,362,875.36 and 557,818.34

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Solution

The fourth proportional to 987,510.53, 1,362,875.36 and 557,818.34 is: 769,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,510.53 : 1,362,875.36 = 557,818.34 : x
  2. Step 2: Convert to fraction form
    987,510.53/1,362,875.36 = 557,818.34/x
  3. Step 3: Cross multiply
    987,510.53x = 1,362,875.36 × 557,818.34
  4. Step 4: Simplify right side
    987,510.53x = 760,236,861,338.63
  5. Step 5: Solve for x
    x = 760,236,861,338.63/987,510.53
  6. Step 6: Final answer
    x = 769,851.90

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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.