Home / 899,896.96-1,242,170.54-518,075.92

Finding the Fourth Proportional to 899,896.96, 1,242,170.54 and 518,075.92

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Solution

The fourth proportional to 899,896.96, 1,242,170.54 and 518,075.92 is: 715,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,896.96 : 1,242,170.54 = 518,075.92 : x
  2. Step 2: Convert to fraction form
    899,896.96/1,242,170.54 = 518,075.92/x
  3. Step 3: Cross multiply
    899,896.96x = 1,242,170.54 × 518,075.92
  4. Step 4: Simplify right side
    899,896.96x = 643,538,645,307.40
  5. Step 5: Solve for x
    x = 643,538,645,307.40/899,896.96
  6. Step 6: Final answer
    x = 715,124.81

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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.