Home / 987,511.07-1,362,876.10-557,818.87

Finding the Fourth Proportional to 987,511.07, 1,362,876.10 and 557,818.87

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Solution

The fourth proportional to 987,511.07, 1,362,876.10 and 557,818.87 is: 769,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,511.07 : 1,362,876.10 = 557,818.87 : x
  2. Step 2: Convert to fraction form
    987,511.07/1,362,876.10 = 557,818.87/x
  3. Step 3: Cross multiply
    987,511.07x = 1,362,876.10 × 557,818.87
  4. Step 4: Simplify right side
    987,511.07x = 760,237,999,855.72
  5. Step 5: Solve for x
    x = 760,237,999,855.72/987,511.07
  6. Step 6: Final answer
    x = 769,852.64

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1.5x scale

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.