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Finding the Fourth Proportional to 655,907.52, 899,252.51 and 643,951.92

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Solution

The fourth proportional to 655,907.52, 899,252.51 and 643,951.92 is: 882,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,907.52 : 899,252.51 = 643,951.92 : x
  2. Step 2: Convert to fraction form
    655,907.52/899,252.51 = 643,951.92/x
  3. Step 3: Cross multiply
    655,907.52x = 899,252.51 × 643,951.92
  4. Step 4: Simplify right side
    655,907.52x = 579,075,380,379.32
  5. Step 5: Solve for x
    x = 579,075,380,379.32/655,907.52
  6. Step 6: Final answer
    x = 882,861.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.