Home / 851,397.72-1,174,936.80-469,438.08

Finding the Fourth Proportional to 851,397.72, 1,174,936.80 and 469,438.08

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Solution

The fourth proportional to 851,397.72, 1,174,936.80 and 469,438.08 is: 647,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,397.72 : 1,174,936.80 = 469,438.08 : x
  2. Step 2: Convert to fraction form
    851,397.72/1,174,936.80 = 469,438.08/x
  3. Step 3: Cross multiply
    851,397.72x = 1,174,936.80 × 469,438.08
  4. Step 4: Simplify right side
    851,397.72x = 551,560,075,513.34
  5. Step 5: Solve for x
    x = 551,560,075,513.34/851,397.72
  6. Step 6: Final answer
    x = 647,828.93

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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.